86278475 has 12 divisors (see below), whose sum is σ = 107136744. Its totient is φ = 68925120.

The previous prime is 86278459. The next prime is 86278483. The reversal of 86278475 is 57487268.

It is not a de Polignac number, because 86278475 - 2⁴ = 86278459 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19412 + ... + 23438.

It is an arithmetic number, because the mean of its divisors is an integer number (8928062).

Almost surely, 2^86278475 is an apocalyptic number.

86278475 is a deficient number, since it is larger than the sum of its proper divisors (20858269).

86278475 is a wasteful number, since it uses less digits than its factorization.

86278475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4894 (or 4889 counting only the distinct ones).

The product of its digits is 752640, while the sum is 47.

The square root of 86278475 is about 9288.6207264588. The cubic root of 86278475 is about 441.8764131723.

The spelling of 86278475 in words is "eighty-six million, two hundred seventy-eight thousand, four hundred seventy-five".