87955980 has 72 divisors (see below), whose sum is σ = 286494768. Its totient is φ = 20103552.

The previous prime is 87955939. The next prime is 87955981. The reversal of 87955980 is 8955978.

It is not an unprimeable number, because it can be changed into a prime (87955981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12019 + ... + 17898.

It is an arithmetic number, because the mean of its divisors is an integer number (3979094).

Almost surely, 2^87955980 is an apocalyptic number.

It is an amenable number.

87955980 is an abundant number, since it is smaller than the sum of its proper divisors (198538788).

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

87955980 is a wasteful number, since it uses less digits than its factorization.

87955980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29943 (or 29934 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 51.

The square root of 87955980 is about 9378.4849522724. The cubic root of 87955980 is about 444.7218393774.

The spelling of 87955980 in words is "eighty-seven million, nine hundred fifty-five thousand, nine hundred eighty".