85898690 has 64 divisors (see below), whose sum is σ = 166561920. Its totient is φ = 31848960.

The previous prime is 85898663. The next prime is 85898713. The reversal of 85898690 is 9689858.

It is a super-2 number, since 2×85898690² = 14757169887432200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

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, 1282037 + ... + 1282103.

It is an arithmetic number, because the mean of its divisors is an integer number (2602530).

Almost surely, 2^85898690 is an apocalyptic number.

85898690 is a deficient number, since it is larger than the sum of its proper divisors (80663230).

85898690 is a wasteful number, since it uses less digits than its factorization.

85898690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227.

The product of its (nonzero) digits is 1244160, while the sum is 53.

The square root of 85898690 is about 9268.1546167508. The cubic root of 85898690 is about 441.2271014554.

The spelling of 85898690 in words is "eighty-five million, eight hundred ninety-eight thousand, six hundred ninety".