689402966 has 32 divisors (see below), whose sum is σ = 1236280320. Its totient is φ = 281910816.

The previous prime is 689402953. The next prime is 689402977. The reversal of 689402966 is 669204986.

689402966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 138920 + ... + 143796.

It is an arithmetic number, because the mean of its divisors is an integer number (38633760).

Almost surely, 2^689402966 is an apocalyptic number.

689402966 is a deficient number, since it is larger than the sum of its proper divisors (546877354).

689402966 is a wasteful number, since it uses less digits than its factorization.

689402966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5348.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The square root of 689402966 is about 26256.4842657961. The cubic root of 689402966 is about 883.4006527864.

The spelling of 689402966 in words is "six hundred eighty-nine million, four hundred two thousand, nine hundred sixty-six".