86915430 has 80 divisors (see below), whose sum is σ = 267109920. Its totient is φ = 19865088.

The previous prime is 86915399. The next prime is 86915471. The reversal of 86915430 is 3451968.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1995 + ... + 13334.

It is an arithmetic number, because the mean of its divisors is an integer number (3338874).

Almost surely, 2^86915430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86915430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133554960).

86915430 is an abundant number, since it is smaller than the sum of its proper divisors (180194490).

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

86915430 is a wasteful number, since it uses less digits than its factorization.

86915430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15355 (or 15346 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 86915430 is about 9322.8445229983. The cubic root of 86915430 is about 442.9611394930.

The spelling of 86915430 in words is "eighty-six million, nine hundred fifteen thousand, four hundred thirty".