679738401 has 6 divisors (see below), whose sum is σ = 981844370. Its totient is φ = 453158928.

The previous prime is 679738373. The next prime is 679738403. The reversal of 679738401 is 104837976.

It can be written as a sum of positive squares in only one way, i.e., 676052001 + 3686400 = 26001^2 + 1920^2 .

It is not a de Polignac number, because 679738401 - 2⁷ = 679738273 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (679738403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37763236 + ... + 37763253.

Almost surely, 2^679738401 is an apocalyptic number.

It is an amenable number.

679738401 is a deficient number, since it is larger than the sum of its proper divisors (302105969).

679738401 is a wasteful number, since it uses less digits than its factorization.

679738401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75526495 (or 75526492 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 679738401 is about 26071.7932064521. The cubic root of 679738401 is about 879.2531546499.

The spelling of 679738401 in words is "six hundred seventy-nine million, seven hundred thirty-eight thousand, four hundred one".