87305936 has 20 divisors (see below), whose sum is σ = 169327332. Its totient is φ = 43608576.

The previous prime is 87305923. The next prime is 87305963. The reversal of 87305936 is 63950378.

It can be written as a sum of positive squares in 2 ways, for example, as 40246336 + 47059600 = 6344^2 + 6860^2 .

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 87305893 and 87305902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18296 + ... + 22568.

Almost surely, 2^87305936 is an apocalyptic number.

It is an amenable number.

87305936 is a deficient number, since it is larger than the sum of its proper divisors (82021396).

87305936 is a wasteful number, since it uses less digits than its factorization.

87305936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5558 (or 5552 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 87305936 is about 9343.7645518281. The cubic root of 87305936 is about 443.6235480202.

The spelling of 87305936 in words is "eighty-seven million, three hundred five thousand, nine hundred thirty-six".