688838601 has 12 divisors (see below), whose sum is σ = 1009538096. Its totient is φ = 417477720.

The previous prime is 688838573. The next prime is 688838609. The reversal of 688838601 is 106838886.

It is a happy number.

It is not a de Polignac number, because 688838601 - 2¹⁴ = 688822217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (688838609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 948451 + ... + 949176.

Almost surely, 2^688838601 is an apocalyptic number.

It is an amenable number.

688838601 is a deficient number, since it is larger than the sum of its proper divisors (320699495).

688838601 is a wasteful number, since it uses less digits than its factorization.

688838601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1897652 (or 1897641 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The square root of 688838601 is about 26245.7349106479. The cubic root of 688838601 is about 883.1595279576.

The spelling of 688838601 in words is "six hundred eighty-eight million, eight hundred thirty-eight thousand, six hundred one".