85983858 has 36 divisors (see below), whose sum is σ = 197913690. Its totient is φ = 26973696.

The previous prime is 85983851. The next prime is 85983881. The reversal of 85983858 is 85838958.

It can be written as a sum of positive squares in 3 ways, for example, as 84327489 + 1656369 = 9183^2 + 1287^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85983851) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3063 + ... + 13466.

Almost surely, 2^85983858 is an apocalyptic number.

85983858 is an abundant number, since it is smaller than the sum of its proper divisors (111929832).

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

85983858 is a wasteful number, since it uses less digits than its factorization.

85983858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16571 (or 16551 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 54.

The square root of 85983858 is about 9272.7481363402. The cubic root of 85983858 is about 441.3728779006.

The spelling of 85983858 in words is "eighty-five million, nine hundred eighty-three thousand, eight hundred fifty-eight".