85170345 has 32 divisors (see below), whose sum is σ = 149893632. Its totient is φ = 41033472.

The previous prime is 85170317. The next prime is 85170353. The reversal of 85170345 is 54307158.

It is not a de Polignac number, because 85170345 - 2¹⁶ = 85104809 is a prime.

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, 4519 + ... + 13811.

It is an arithmetic number, because the mean of its divisors is an integer number (4684176).

Almost surely, 2^85170345 is an apocalyptic number.

It is an amenable number.

85170345 is a deficient number, since it is larger than the sum of its proper divisors (64723287).

85170345 is a wasteful number, since it uses less digits than its factorization.

85170345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9361.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 85170345 is about 9228.7780881328. The cubic root of 85170345 is about 439.9764880687.

The spelling of 85170345 in words is "eighty-five million, one hundred seventy thousand, three hundred forty-five".