688797022 has 4 divisors (see below), whose sum is σ = 1033195536. Its totient is φ = 344398510.

The previous prime is 688797019. The next prime is 688797049. The reversal of 688797022 is 220797886.

688797022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172199254 + ... + 172199257.

It is an arithmetic number, because the mean of its divisors is an integer number (258298884).

Almost surely, 2^688797022 is an apocalyptic number.

688797022 is a deficient number, since it is larger than the sum of its proper divisors (344398514).

688797022 is a wasteful number, since it uses less digits than its factorization.

688797022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344398513.

The product of its (nonzero) digits is 677376, while the sum is 49.

The square root of 688797022 is about 26244.9427890403. The cubic root of 688797022 is about 883.1417581303.

The spelling of 688797022 in words is "six hundred eighty-eight million, seven hundred ninety-seven thousand, twenty-two".