87765032 has 16 divisors (see below), whose sum is σ = 167665140. Its totient is φ = 43054336.

The previous prime is 87765019. The next prime is 87765043. The reversal of 87765032 is 23056778.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 87347716 + 417316 = 9346^2 + 646^2 .

It is a super-2 number, since 2×87765032² = 15405401683922048, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103073 + ... + 103920.

Almost surely, 2^87765032 is an apocalyptic number.

It is an amenable number.

87765032 is a deficient number, since it is larger than the sum of its proper divisors (79900108).

87765032 is a wasteful number, since it uses less digits than its factorization.

87765032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207052 (or 207048 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 87765032 is about 9368.2993120416. The cubic root of 87765032 is about 444.3997833086.

The spelling of 87765032 in words is "eighty-seven million, seven hundred sixty-five thousand, thirty-two".