87157400 has 96 divisors (see below), whose sum is σ = 223311600. Its totient is φ = 31372800.

The previous prime is 87157379. The next prime is 87157429. The reversal of 87157400 is 475178.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 380486 + ... + 380714.

Almost surely, 2^87157400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87157400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111655800).

87157400 is an abundant number, since it is smaller than the sum of its proper divisors (136154200).

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

87157400 is a wasteful number, since it uses less digits than its factorization.

87157400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 87157400 is about 9335.8127659031. The cubic root of 87157400 is about 443.3718222123.

The spelling of 87157400 in words is "eighty-seven million, one hundred fifty-seven thousand, four hundred".