689375232 has 384 divisors, whose sum is σ = 2531692800. Its totient is φ = 180486144.

The previous prime is 689375227. The next prime is 689375311. The reversal of 689375232 is 232573986.

It is a tau number, because it is divible by the number of its divisors (384).

Its product of digits (544320) is a multiple of the sum of its prime divisors (162).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5031868 + ... + 5032004.

It is an arithmetic number, because the mean of its divisors is an integer number (6592950).

Almost surely, 2^689375232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 689375232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1265846400).

689375232 is an abundant number, since it is smaller than the sum of its proper divisors (1842317568).

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

689375232 is a wasteful number, since it uses less digits than its factorization.

689375232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 162 counting only the distinct ones).

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

The square root of 689375232 is about 26255.9561242778. The cubic root of 689375232 is about 883.3888065158.

The spelling of 689375232 in words is "six hundred eighty-nine million, three hundred seventy-five thousand, two hundred thirty-two".