86975880 has 64 divisors (see below), whose sum is σ = 272280960. Its totient is φ = 22184448.

The previous prime is 86975879. The next prime is 86975881. The reversal of 86975880 is 8857968.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (86975879) and next prime (86975881).

It is not an unprimeable number, because it can be changed into a prime (86975881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12997 + ... + 18516.

It is an arithmetic number, because the mean of its divisors is an integer number (4254390).

Almost surely, 2^86975880 is an apocalyptic number.

It is an amenable number.

86975880 is an abundant number, since it is smaller than the sum of its proper divisors (185305080).

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

86975880 is a wasteful number, since it uses less digits than its factorization.

86975880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31550 (or 31546 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 51.

The square root of 86975880 is about 9326.0859957433. The cubic root of 86975880 is about 443.0638093927.

The spelling of 86975880 in words is "eighty-six million, nine hundred seventy-five thousand, eight hundred eighty".