689943320 has 32 divisors (see below), whose sum is σ = 1693498320. Its totient is φ = 250888320.

The previous prime is 689943313. The next prime is 689943341. The reversal of 689943320 is 23349986.

689943320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 783587 + ... + 784466.

Almost surely, 2^689943320 is an apocalyptic number.

It is an amenable number.

689943320 is an abundant number, since it is smaller than the sum of its proper divisors (1003555000).

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

689943320 is a wasteful number, since it uses less digits than its factorization.

689943320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568075 (or 1568071 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 44.

The square root of 689943320 is about 26266.7721656088. The cubic root of 689943320 is about 883.6313956363.

The spelling of 689943320 in words is "six hundred eighty-nine million, nine hundred forty-three thousand, three hundred twenty".