689750976 has 56 divisors (see below), whose sum is σ = 1829765200. Its totient is φ = 229312512.

The previous prime is 689750969. The next prime is 689750981. The reversal of 689750976 is 679057986.

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, 71700 + ... + 80748.

Almost surely, 2^689750976 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 689750976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (914882600).

689750976 is an abundant number, since it is smaller than the sum of its proper divisors (1140014224).

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

689750976 is a wasteful number, since it uses less digits than its factorization.

689750976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9461 (or 9451 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 57.

The square root of 689750976 is about 26263.1105545402. The cubic root of 689750976 is about 883.5492744007.

The spelling of 689750976 in words is "six hundred eighty-nine million, seven hundred fifty thousand, nine hundred seventy-six".