688870622 has 8 divisors (see below), whose sum is σ = 1127242872. Its totient is φ = 313123000.

The previous prime is 688870619. The next prime is 688870667. The reversal of 688870622 is 226078886.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15656129 + ... + 15656172.

It is an arithmetic number, because the mean of its divisors is an integer number (140905359).

Almost surely, 2^688870622 is an apocalyptic number.

688870622 is a deficient number, since it is larger than the sum of its proper divisors (438372250).

688870622 is a wasteful number, since it uses less digits than its factorization.

688870622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31312314.

The product of its (nonzero) digits is 516096, while the sum is 47.

The square root of 688870622 is about 26246.3449264845. The cubic root of 688870622 is about 883.1732124467.

The spelling of 688870622 in words is "six hundred eighty-eight million, eight hundred seventy thousand, six hundred twenty-two".