689456802 has 32 divisors (see below), whose sum is σ = 1424908800. Its totient is φ = 222168960.

The previous prime is 689456773. The next prime is 689456813. The reversal of 689456802 is 208654986.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286918 + ... + 289310.

It is an arithmetic number, because the mean of its divisors is an integer number (44528400).

Almost surely, 2^689456802 is an apocalyptic number.

689456802 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

689456802 is an abundant number, since it is smaller than the sum of its proper divisors (735451998).

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

689456802 is a wasteful number, since it uses less digits than its factorization.

689456802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3978.

The product of its (nonzero) digits is 829440, while the sum is 48.

The square root of 689456802 is about 26257.5094401583. The cubic root of 689456802 is about 883.4236473300.

The spelling of 689456802 in words is "six hundred eighty-nine million, four hundred fifty-six thousand, eight hundred two".