65732472 has 192 divisors, whose sum is σ = 211461600. Its totient is φ = 19035648.

The previous prime is 65732453. The next prime is 65732479. The reversal of 65732472 is 27423756.

It is a happy number.

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

Its product of digits (70560) is a multiple of the sum of its prime divisors (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65732479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3866608 + ... + 3866624.

Almost surely, 2^65732472 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 65732472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105730800).

65732472 is an abundant number, since it is smaller than the sum of its proper divisors (145729128).

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

65732472 is a wasteful number, since it uses less digits than its factorization.

65732472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74 (or 35 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 65732472 is about 8107.5564752890. The cubic root of 65732472 is about 403.5772298656.

It can be divided in two parts, 6573 and 2472, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 65732472 in words is "sixty-five million, seven hundred thirty-two thousand, four hundred seventy-two".