86859045 has 48 divisors (see below), whose sum is σ = 185308032. Its totient is φ = 36650880.

The previous prime is 86859041. The next prime is 86859079. The reversal of 86859045 is 54095868.

86859045 is nontrivially palindromic in base 16.

It is not a de Polignac number, because 86859045 - 2² = 86859041 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86859041) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6511 + ... + 14700.

It is an arithmetic number, because the mean of its divisors is an integer number (3860584).

Almost surely, 2^86859045 is an apocalyptic number.

It is an amenable number.

86859045 is an abundant number, since it is smaller than the sum of its proper divisors (98448987).

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

86859045 is a wasteful number, since it uses less digits than its factorization.

86859045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21242 (or 21239 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The square root of 86859045 is about 9319.8200089916. The cubic root of 86859045 is about 442.8653307787.

The spelling of 86859045 in words is "eighty-six million, eight hundred fifty-nine thousand, forty-five".