689095893924 has 81 divisors (see below), whose sum is σ = 1800286958379. Its totient is φ = 222239190960.

The previous prime is 689095893919. The next prime is 689095893949. The reversal of 689095893924 is 429398590986.

The square root of 689095893924 is 830118.

It is a perfect power (a square), and thus also a powerful number.

689095893924 is a `hidden beast` number, since 6 + 8 + 9 + 0 + 9 + 589 + 39 + 2 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 154399717 + ... + 154404179.

Almost surely, 2^689095893924 is an apocalyptic number.

689095893924 is the 830118-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 689095893924

689095893924 is an abundant number, since it is smaller than the sum of its proper divisors (1111191064455).

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

689095893924 is an equidigital number, since it uses as much as digits as its factorization.

689095893924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8998 (or 4499 counting only the distinct ones).

The product of its (nonzero) digits is 302330880, while the sum is 72.

The spelling of 689095893924 in words is "six hundred eighty-nine billion, ninety-five million, eight hundred ninety-three thousand, nine hundred twenty-four".