86220575 has 24 divisors (see below), whose sum is σ = 128622720. Its totient is φ = 56008800.

The previous prime is 86220557. The next prime is 86220587. The reversal of 86220575 is 57502268.

It is not a de Polignac number, because 86220575 - 2⁸ = 86220319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9641 + ... + 16290.

It is an arithmetic number, because the mean of its divisors is an integer number (5359280).

Almost surely, 2^86220575 is an apocalyptic number.

86220575 is a deficient number, since it is larger than the sum of its proper divisors (42402145).

86220575 is a wasteful number, since it uses less digits than its factorization.

86220575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25967 (or 25962 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 86220575 is about 9285.5034866183. The cubic root of 86220575 is about 441.7775458337. Note that the first 3 decimals are identical.

The spelling of 86220575 in words is "eighty-six million, two hundred twenty thousand, five hundred seventy-five".