63172296 has 144 divisors (see below), whose sum is σ = 195184080. Its totient is φ = 18302400.

The previous prime is 63172279. The next prime is 63172297. The reversal of 63172296 is 69227136.

It is a Harshad number since it is a multiple of its sum of digits (36).

Its product of digits (27216) is a multiple of the sum of its prime factors (168).

It is a self number, because there is not a number n which added to its sum of digits gives 63172296.

It is not an unprimeable number, because it can be changed into a prime (63172297) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 761071 + ... + 761153.

It is an arithmetic number, because the mean of its divisors is an integer number (1355445).

Almost surely, 2^63172296 is an apocalyptic number.

63172296 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63172296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97592040).

63172296 is an abundant number, since it is smaller than the sum of its proper divisors (132011784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63172296 is a wasteful number, since it uses less digits than its factorization.

63172296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 130 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 63172296 is about 7948.1001503504. The cubic root of 63172296 is about 398.2681290461.

It can be divided in two parts, 6317229 and 6, that added together give a triangular number (6317235 = T₃₅₅₄).

The spelling of 63172296 in words is "sixty-three million, one hundred seventy-two thousand, two hundred ninety-six".