87655432 has 8 divisors (see below), whose sum is σ = 164353950. Its totient is φ = 43827712.

The previous prime is 87655427. The next prime is 87655441. The reversal of 87655432 is 23455678.

It can be written as a sum of positive squares in only one way, i.e., 86229796 + 1425636 = 9286^2 + 1194^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a nialpdrome in base 10.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5478457 + ... + 5478472.

Almost surely, 2^87655432 is an apocalyptic number.

It is an amenable number.

87655432 is a deficient number, since it is larger than the sum of its proper divisors (76698518).

87655432 is a wasteful number, since it uses less digits than its factorization.

87655432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10956935 (or 10956931 counting only the distinct ones).

The product of its digits is 201600, while the sum is 40.

The square root of 87655432 is about 9362.4479704829. The cubic root of 87655432 is about 444.2147190758.

The spelling of 87655432 in words is "eighty-seven million, six hundred fifty-five thousand, four hundred thirty-two".