87400504 has 8 divisors (see below), whose sum is σ = 163875960. Its totient is φ = 43700248.

The previous prime is 87400499. The next prime is 87400507. The reversal of 87400504 is 40500478.

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

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87400507) by changing a digit.

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 as a sum of consecutive naturals, namely, 5462524 + ... + 5462539.

It is an arithmetic number, because the mean of its divisors is an integer number (20484495).

Almost surely, 2^87400504 is an apocalyptic number.

It is an amenable number.

87400504 is a deficient number, since it is larger than the sum of its proper divisors (76475456).

87400504 is a wasteful number, since it uses less digits than its factorization.

87400504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10925069 (or 10925065 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 87400504 is about 9348.8236693180. The cubic root of 87400504 is about 443.7836648665.

The spelling of 87400504 in words is "eighty-seven million, four hundred thousand, five hundred four".