86961588 has 24 divisors (see below), whose sum is σ = 231897792. Its totient is φ = 24846144.

The previous prime is 86961583. The next prime is 86961619. The reversal of 86961588 is 88516968.

It is a self number, because there is not a number n which added to its sum of digits gives 86961588.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86961583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517545 + ... + 517712.

It is an arithmetic number, because the mean of its divisors is an integer number (9662408).

Almost surely, 2^86961588 is an apocalyptic number.

It is an amenable number.

86961588 is an abundant number, since it is smaller than the sum of its proper divisors (144936204).

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

86961588 is a wasteful number, since it uses less digits than its factorization.

86961588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035271 (or 1035269 counting only the distinct ones).

The product of its digits is 829440, while the sum is 51.

The square root of 86961588 is about 9325.3197264223. The cubic root of 86961588 is about 443.0395397721.

The spelling of 86961588 in words is "eighty-six million, nine hundred sixty-one thousand, five hundred eighty-eight".