86975388 has 36 divisors (see below), whose sum is σ = 231427560. Its totient is φ = 27465696.

The previous prime is 86975377. The next prime is 86975389. The reversal of 86975388 is 88357968.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86975389) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62895 + ... + 64262.

Almost surely, 2^86975388 is an apocalyptic number.

It is an amenable number.

86975388 is an abundant number, since it is smaller than the sum of its proper divisors (144452172).

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

86975388 is a wasteful number, since it uses less digits than its factorization.

86975388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127186 (or 127181 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 86975388 is about 9326.0596180809. The cubic root of 86975388 is about 443.0629739588.

The spelling of 86975388 in words is "eighty-six million, nine hundred seventy-five thousand, three hundred eighty-eight".