86807475 has 18 divisors (see below), whose sum is σ = 155482236. Its totient is φ = 46297200.

The previous prime is 86807437. The next prime is 86807489. The reversal of 86807475 is 57470868.

It is not a de Polignac number, because 86807475 - 2¹⁰ = 86806451 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 86807475.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 192681 + ... + 193130.

It is an arithmetic number, because the mean of its divisors is an integer number (8637902).

Almost surely, 2^86807475 is an apocalyptic number.

86807475 is a deficient number, since it is larger than the sum of its proper divisors (68674761).

86807475 is a wasteful number, since it uses less digits than its factorization.

86807475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385827 (or 385819 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 86807475 is about 9317.0529138779. The cubic root of 86807475 is about 442.7776673446. Note that the first 3 decimals are identical.

The spelling of 86807475 in words is "eighty-six million, eight hundred seven thousand, four hundred seventy-five".