32072664 has 32 divisors (see below), whose sum is σ = 86350320. Its totient is φ = 9868416.

The previous prime is 32072653. The next prime is 32072669. The reversal of 32072664 is 46627023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32072669) 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, 51087 + ... + 51710.

Almost surely, 2^32072664 is an apocalyptic number.

It is an amenable number.

32072664 is an abundant number, since it is smaller than the sum of its proper divisors (54277656).

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

32072664 is a wasteful number, since it uses less digits than its factorization.

32072664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102819 (or 102815 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 32072664 is about 5663.2732584610. The cubic root of 32072664 is about 317.7203347937.

Adding to 32072664 its reverse (46627023), we get a palindrome (78699687).

The spelling of 32072664 in words is "thirty-two million, seventy-two thousand, six hundred sixty-four".