32487664 has 40 divisors (see below), whose sum is σ = 69089328. Its totient is φ = 14676480.

The previous prime is 32487643. The next prime is 32487671. The reversal of 32487664 is 46678423.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34204 + ... + 35140.

Almost surely, 2^32487664 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 32487664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34544664).

32487664 is an abundant number, since it is smaller than the sum of its proper divisors (36601664).

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

32487664 is a wasteful number, since it uses less digits than its factorization.

32487664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153 (or 1147 counting only the distinct ones).

The product of its digits is 193536, while the sum is 40.

The square root of 32487664 is about 5699.7950840359. The cubic root of 32487664 is about 319.0848331292.

The spelling of 32487664 in words is "thirty-two million, four hundred eighty-seven thousand, six hundred sixty-four".