86915442 has 64 divisors (see below), whose sum is σ = 186157440. Its totient is φ = 27016704.

The previous prime is 86915399. The next prime is 86915471. The reversal of 86915442 is 24451968.

It is a self number, because there is not a number n which added to its sum of digits gives 86915442.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 976534 + ... + 976622.

It is an arithmetic number, because the mean of its divisors is an integer number (2908710).

Almost surely, 2^86915442 is an apocalyptic number.

86915442 is an abundant number, since it is smaller than the sum of its proper divisors (99241998).

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

86915442 is a wasteful number, since it uses less digits than its factorization.

86915442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267.

The product of its digits is 69120, while the sum is 39.

The square root of 86915442 is about 9322.8451665787. The cubic root of 86915442 is about 442.9611598788.

The spelling of 86915442 in words is "eighty-six million, nine hundred fifteen thousand, four hundred forty-two".