86910984 has 24 divisors (see below), whose sum is σ = 235384110. Its totient is φ = 28970304.

The previous prime is 86910983. The next prime is 86910991. The reversal of 86910984 is 48901968.

It can be written as a sum of positive squares in only one way, i.e., 57426084 + 29484900 = 7578^2 + 5430^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (86910983) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 603477 + ... + 603620.

Almost surely, 2^86910984 is an apocalyptic number.

It is an amenable number.

86910984 is an abundant number, since it is smaller than the sum of its proper divisors (148473126).

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

86910984 is a wasteful number, since it uses less digits than its factorization.

86910984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207109 (or 1207102 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 86910984 is about 9322.6060734110. The cubic root of 86910984 is about 442.9535864083.

The spelling of 86910984 in words is "eighty-six million, nine hundred ten thousand, nine hundred eighty-four".