689352976 has 40 divisors (see below), whose sum is σ = 1442657664. Its totient is φ = 317212800.

The previous prime is 689352947. The next prime is 689353001. The reversal of 689352976 is 679253986.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67401 + ... + 76951.

Almost surely, 2^689352976 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 689352976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (721328832).

689352976 is an abundant number, since it is smaller than the sum of its proper divisors (753304688).

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

689352976 is a wasteful number, since it uses less digits than its factorization.

689352976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9919 (or 9913 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 55.

The square root of 689352976 is about 26255.5322932139. The cubic root of 689352976 is about 883.3792998824.

The spelling of 689352976 in words is "six hundred eighty-nine million, three hundred fifty-two thousand, nine hundred seventy-six".