85955658 has 32 divisors (see below), whose sum is σ = 181440000. Its totient is φ = 27071856.

The previous prime is 85955657. The next prime is 85955719. The reversal of 85955658 is 85655958.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 85955658.

It is not an unprimeable number, because it can be changed into a prime (85955651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56593 + ... + 58091.

It is an arithmetic number, because the mean of its divisors is an integer number (5670000).

Almost surely, 2^85955658 is an apocalyptic number.

85955658 is an abundant number, since it is smaller than the sum of its proper divisors (95484342).

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

85955658 is a wasteful number, since it uses less digits than its factorization.

85955658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2026.

The product of its digits is 2160000, while the sum is 51.

The square root of 85955658 is about 9271.2274268297. The cubic root of 85955658 is about 441.3246204858.

The spelling of 85955658 in words is "eighty-five million, nine hundred fifty-five thousand, six hundred fifty-eight".