87196980 has 48 divisors (see below), whose sum is σ = 262934784. Its totient is φ = 21463680.

The previous prime is 87196973. The next prime is 87197003. The reversal of 87196980 is 8969178.

It is a happy number.

It is a super-2 number, since 2×87196980² = 15206626642240800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 55116 + ... + 56675.

It is an arithmetic number, because the mean of its divisors is an integer number (5477808).

Almost surely, 2^87196980 is an apocalyptic number.

It is an amenable number.

87196980 is an abundant number, since it is smaller than the sum of its proper divisors (175737804).

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

87196980 is a wasteful number, since it uses less digits than its factorization.

87196980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111816 (or 111814 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 48.

The square root of 87196980 is about 9337.9323193092. The cubic root of 87196980 is about 443.4389268643.

The spelling of 87196980 in words is "eighty-seven million, one hundred ninety-six thousand, nine hundred eighty".