64937472 has 80 divisors (see below), whose sum is σ = 175857792. Its totient is φ = 21288960.

The previous prime is 64937471. The next prime is 64937473. The reversal of 64937472 is 27473946.

It is an interprime number because it is at equal distance from previous prime (64937471) and next prime (64937473).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64937471) 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, 102597 + ... + 103227.

Almost surely, 2^64937472 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 64937472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87928896).

64937472 is an abundant number, since it is smaller than the sum of its proper divisors (110920320).

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

64937472 is an equidigital number, since it uses as much as digits as its factorization.

64937472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719 (or 703 counting only the distinct ones).

The product of its digits is 254016, while the sum is 42.

The square root of 64937472 is about 8058.3789933212. The cubic root of 64937472 is about 401.9436073466.

The spelling of 64937472 in words is "sixty-four million, nine hundred thirty-seven thousand, four hundred seventy-two".