87250404 has 24 divisors (see below), whose sum is σ = 203793408. Its totient is φ = 29053600.

The previous prime is 87250393. The next prime is 87250411. The reversal of 87250404 is 40405278.

It is a super-2 number, since 2×87250404² = 15225265996326432, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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, 10654 + ... + 16970.

It is an arithmetic number, because the mean of its divisors is an integer number (8491392).

Almost surely, 2^87250404 is an apocalyptic number.

It is an amenable number.

87250404 is an abundant number, since it is smaller than the sum of its proper divisors (116543004).

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

87250404 is a wasteful number, since it uses less digits than its factorization.

87250404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7475 (or 7473 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 87250404 is about 9340.7924717339. The cubic root of 87250404 is about 443.5294706907.

The spelling of 87250404 in words is "eighty-seven million, two hundred fifty thousand, four hundred four".