87399400 has 48 divisors (see below), whose sum is σ = 221682240. Its totient is φ = 31780800.

The previous prime is 87399383. The next prime is 87399421. The reversal of 87399400 is 499378.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17664 + ... + 22063.

It is an arithmetic number, because the mean of its divisors is an integer number (4618380).

Almost surely, 2^87399400 is an apocalyptic number.

It is an amenable number.

87399400 is an abundant number, since it is smaller than the sum of its proper divisors (134282840).

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

87399400 is a wasteful number, since it uses less digits than its factorization.

87399400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39754 (or 39745 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 87399400 is about 9348.7646242699. The cubic root of 87399400 is about 443.7817963066.

The spelling of 87399400 in words is "eighty-seven million, three hundred ninety-nine thousand, four hundred".