689993676 has 36 divisors (see below), whose sum is σ = 1747107544. Its totient is φ = 229608000.

The previous prime is 689993669. The next prime is 689993687. The reversal of 689993676 is 676399986.

It is a tau number, because it is divible by the number of its divisors (36).

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, 5691 + ... + 37581.

Almost surely, 2^689993676 is an apocalyptic number.

It is an amenable number.

689993676 is an abundant number, since it is smaller than the sum of its proper divisors (1057113868).

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

689993676 is a wasteful number, since it uses less digits than its factorization.

689993676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32502 (or 32497 counting only the distinct ones).

The product of its digits is 26453952, while the sum is 63.

The square root of 689993676 is about 26267.7306975688. The cubic root of 689993676 is about 883.6528926002.

The spelling of 689993676 in words is "six hundred eighty-nine million, nine hundred ninety-three thousand, six hundred seventy-six".