87394280 has 32 divisors (see below), whose sum is σ = 208205640. Its totient is φ = 32901120.

The previous prime is 87394277. The next prime is 87394327. The reversal of 87394280 is 8249378.

It can be written as a sum of positive squares in 4 ways, for example, as 80748196 + 6646084 = 8986^2 + 2578^2 .

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, 63581 + ... + 64940.

Almost surely, 2^87394280 is an apocalyptic number.

It is an amenable number.

87394280 is an abundant number, since it is smaller than the sum of its proper divisors (120811360).

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

87394280 is a wasteful number, since it uses less digits than its factorization.

87394280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128549 (or 128545 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 87394280 is about 9348.4907872875. The cubic root of 87394280 is about 443.7731303158.

The spelling of 87394280 in words is "eighty-seven million, three hundred ninety-four thousand, two hundred eighty".