688674900 has 36 divisors (see below), whose sum is σ = 1992566912. Its totient is φ = 183646560.

The previous prime is 688674859. The next prime is 688674923. The reversal of 688674900 is 9476886.

It is a self number, because there is not a number n which added to its sum of digits gives 688674900.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 1147492 + ... + 1148091.

Almost surely, 2^688674900 is an apocalyptic number.

688674900 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

688674900 is an abundant number, since it is smaller than the sum of its proper divisors (1303892012).

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

688674900 is a wasteful number, since it uses less digits than its factorization.

688674900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2295600 (or 2295593 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 688674900 is about 26242.6161043445. The cubic root of 688674900 is about 883.0895620992.

The spelling of 688674900 in words is "six hundred eighty-eight million, six hundred seventy-four thousand, nine hundred".