85890474 has 24 divisors (see below), whose sum is σ = 187807620. Its totient is φ = 28366848.

The previous prime is 85890451. The next prime is 85890499. The reversal of 85890474 is 47409858.

It can be written as a sum of positive squares in 2 ways, for example, as 82029249 + 3861225 = 9057^2 + 1965^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19927 + ... + 23850.

Almost surely, 2^85890474 is an apocalyptic number.

85890474 is an abundant number, since it is smaller than the sum of its proper divisors (101917146).

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

85890474 is a wasteful number, since it uses less digits than its factorization.

85890474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43894 (or 43891 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 85890474 is about 9267.7113679700. The cubic root of 85890474 is about 441.2130335752.

The spelling of 85890474 in words is "eighty-five million, eight hundred ninety thousand, four hundred seventy-four".