890768690 has 32 divisors (see below), whose sum is σ = 1835516160. Its totient is φ = 304893504.

The previous prime is 890768689. The next prime is 890768731. The reversal of 890768690 is 96867098.

It is a super-2 number, since 2×890768690² = 1586937718168632200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32531 + ... + 53289.

It is an arithmetic number, because the mean of its divisors is an integer number (57359880).

Almost surely, 2^890768690 is an apocalyptic number.

890768690 is an abundant number, since it is smaller than the sum of its proper divisors (944747470).

890768690 is a wasteful number, since it uses less digits than its factorization.

890768690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21386.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The square root of 890768690 is about 29845.7482734141. The cubic root of 890768690 is about 962.1770218967.

The spelling of 890768690 in words is "eight hundred ninety million, seven hundred sixty-eight thousand, six hundred ninety".