689703344 has 40 divisors (see below), whose sum is σ = 1534514880. Its totient is φ = 297000000.

The previous prime is 689703319. The next prime is 689703361. The reversal of 689703344 is 443307986.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 689703295 and 689703304.

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 7 ways as a sum of consecutive naturals, for example, 99782 + ... + 106469.

It is an arithmetic number, because the mean of its divisors is an integer number (38362872).

Almost surely, 2^689703344 is an apocalyptic number.

It is an amenable number.

689703344 is an abundant number, since it is smaller than the sum of its proper divisors (844811536).

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

689703344 is a wasteful number, since it uses less digits than its factorization.

689703344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206289 (or 206283 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 689703344 is about 26262.2037156062. The cubic root of 689703344 is about 883.5289355687.

The spelling of 689703344 in words is "six hundred eighty-nine million, seven hundred three thousand, three hundred forty-four".