85869958 has 16 divisors (see below), whose sum is σ = 136643760. Its totient is φ = 40331776.

The previous prime is 85869937. The next prime is 85869983. The reversal of 85869958 is 85996858.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18033 + ... + 22291.

It is an arithmetic number, because the mean of its divisors is an integer number (8540235).

Almost surely, 2^85869958 is an apocalyptic number.

85869958 is a deficient number, since it is larger than the sum of its proper divisors (50773802).

85869958 is a wasteful number, since it uses less digits than its factorization.

85869958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4871.

The product of its digits is 6220800, while the sum is 58.

The square root of 85869958 is about 9266.6044482324. The cubic root of 85869958 is about 441.1779010512.

The spelling of 85869958 in words is "eighty-five million, eight hundred sixty-nine thousand, nine hundred fifty-eight".