689814910 has 16 divisors (see below), whose sum is σ = 1245132000. Its totient is φ = 275155936.

The previous prime is 689814863. The next prime is 689814943. The reversal of 689814910 is 19418986.

It is a super-2 number, since 2×689814910² = 951689220116616200, which contains 22 as substring.

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 in 7 ways as a sum of consecutive naturals, for example, 92485 + ... + 99664.

It is an arithmetic number, because the mean of its divisors is an integer number (77820750).

Almost surely, 2^689814910 is an apocalyptic number.

689814910 is a deficient number, since it is larger than the sum of its proper divisors (555317090).

689814910 is a wasteful number, since it uses less digits than its factorization.

689814910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192515.

The product of its (nonzero) digits is 124416, while the sum is 46.

The square root of 689814910 is about 26264.3277088906. The cubic root of 689814910 is about 883.5765727040.

The spelling of 689814910 in words is "six hundred eighty-nine million, eight hundred fourteen thousand, nine hundred ten".