689863676 has 6 divisors (see below), whose sum is σ = 1207261440. Its totient is φ = 344931836.

The previous prime is 689863667. The next prime is 689863693. The reversal of 689863676 is 676368986.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86232956 + ... + 86232963.

It is an arithmetic number, because the mean of its divisors is an integer number (201210240).

Almost surely, 2^689863676 is an apocalyptic number.

It is an amenable number.

689863676 is a deficient number, since it is larger than the sum of its proper divisors (517397764).

689863676 is a wasteful number, since it uses less digits than its factorization.

689863676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172465923 (or 172465921 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 59.

The square root of 689863676 is about 26265.2560619538. The cubic root of 689863676 is about 883.5973934968.

The spelling of 689863676 in words is "six hundred eighty-nine million, eight hundred sixty-three thousand, six hundred seventy-six".