688882072 has 32 divisors (see below), whose sum is σ = 1322017200. Its totient is φ = 336438784.

The previous prime is 688882067. The next prime is 688882079. The reversal of 688882072 is 270288886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688882079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53268 + ... + 64924.

Almost surely, 2^688882072 is an apocalyptic number.

It is an amenable number.

688882072 is a deficient number, since it is larger than the sum of its proper divisors (633135128).

688882072 is a wasteful number, since it uses less digits than its factorization.

688882072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11835 (or 11831 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 49.

The square root of 688882072 is about 26246.5630511882. The cubic root of 688882072 is about 883.1781056138.

The spelling of 688882072 in words is "six hundred eighty-eight million, eight hundred eighty-two thousand, seventy-two".