689703345 has 96 divisors (see below), whose sum is σ = 1322680320. Its totient is φ = 330946560.

The previous prime is 689703319. The next prime is 689703361. The reversal of 689703345 is 543307986.

It is not a de Polignac number, because 689703345 - 2⁸ = 689703089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 689703345.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3011691 + ... + 3011919.

It is an arithmetic number, because the mean of its divisors is an integer number (13777920).

Almost surely, 2^689703345 is an apocalyptic number.

It is an amenable number.

689703345 is a deficient number, since it is larger than the sum of its proper divisors (632976975).

689703345 is a wasteful number, since it uses less digits than its factorization.

689703345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 689703345 is about 26262.2037346450. The cubic root of 689703345 is about 883.5289359957.

The spelling of 689703345 in words is "six hundred eighty-nine million, seven hundred three thousand, three hundred forty-five".