87977160 has 48 divisors (see below), whose sum is σ = 285926940. Its totient is φ = 23460480.

The previous prime is 87977137. The next prime is 87977171. The reversal of 87977160 is 6177978.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 87946884 + 30276 = 9378^2 + 174^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 121831 + ... + 122550.

Almost surely, 2^87977160 is an apocalyptic number.

It is an amenable number.

87977160 is an abundant number, since it is smaller than the sum of its proper divisors (197949780).

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

87977160 is a wasteful number, since it uses less digits than its factorization.

87977160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244398 (or 244391 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 45.

The square root of 87977160 is about 9379.6140645551. The cubic root of 87977160 is about 444.7575331892.

The spelling of 87977160 in words is "eighty-seven million, nine hundred seventy-seven thousand, one hundred sixty".