63891296 has 48 divisors (see below), whose sum is σ = 146714400. Its totient is φ = 27377280.

The previous prime is 63891293. The next prime is 63891301. The reversal of 63891296 is 69219836.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63891293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8066 + ... + 13886.

It is an arithmetic number, because the mean of its divisors is an integer number (3056550).

Almost surely, 2^63891296 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63891296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73357200).

63891296 is an abundant number, since it is smaller than the sum of its proper divisors (82823104).

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

63891296 is an equidigital number, since it uses as much as digits as its factorization.

63891296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5852 (or 5830 counting only the distinct ones).

The product of its digits is 139968, while the sum is 44.

The square root of 63891296 is about 7993.2031126451. The cubic root of 63891296 is about 399.7734049943.

The spelling of 63891296 in words is "sixty-three million, eight hundred ninety-one thousand, two hundred ninety-six".