679937841 has 48 divisors (see below), whose sum is σ = 1122775360. Its totient is φ = 406296000.

The previous prime is 679937747. The next prime is 679937897. The reversal of 679937841 is 148739976.

It is a happy number.

It is not a de Polignac number, because 679937841 - 2⁹ = 679937329 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679937341) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 237066 + ... + 239916.

Almost surely, 2^679937841 is an apocalyptic number.

It is an amenable number.

679937841 is a deficient number, since it is larger than the sum of its proper divisors (442837519).

679937841 is a wasteful number, since it uses less digits than its factorization.

679937841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2955 (or 2938 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 679937841 is about 26075.6177491541. The cubic root of 679937841 is about 879.3391392489.

The spelling of 679937841 in words is "six hundred seventy-nine million, nine hundred thirty-seven thousand, eight hundred forty-one".