689961337 has 32 divisors (see below), whose sum is σ = 827366400. Its totient is φ = 568888320.

The previous prime is 689961329. The next prime is 689961343. The reversal of 689961337 is 733169986.

It is not a de Polignac number, because 689961337 - 2³ = 689961329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (689961347) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 756912 + ... + 757822.

It is an arithmetic number, because the mean of its divisors is an integer number (25855200).

Almost surely, 2^689961337 is an apocalyptic number.

It is an amenable number.

689961337 is a deficient number, since it is larger than the sum of its proper divisors (137405063).

689961337 is a wasteful number, since it uses less digits than its factorization.

689961337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113.

The product of its digits is 1469664, while the sum is 52.

The square root of 689961337 is about 26267.1151251903. The cubic root of 689961337 is about 883.6390872093.

The spelling of 689961337 in words is "six hundred eighty-nine million, nine hundred sixty-one thousand, three hundred thirty-seven".