679690948 has 12 divisors (see below), whose sum is σ = 1218470652. Its totient is φ = 331556480.

The previous prime is 679690937. The next prime is 679690961. The reversal of 679690948 is 849096976.

It can be written as a sum of positive squares in 2 ways, for example, as 93663684 + 586027264 = 9678^2 + 24208^2 .

It is a junction number, because it is equal to n+sod(n) for n = 679690892 and 679690901.

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, 2072065 + ... + 2072392.

It is an arithmetic number, because the mean of its divisors is an integer number (101539221).

Almost surely, 2^679690948 is an apocalyptic number.

It is an amenable number.

679690948 is a deficient number, since it is larger than the sum of its proper divisors (538779704).

679690948 is a wasteful number, since it uses less digits than its factorization.

679690948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4144502 (or 4144500 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 58.

The square root of 679690948 is about 26070.8831457624. The cubic root of 679690948 is about 879.2326937536.

The spelling of 679690948 in words is "six hundred seventy-nine million, six hundred ninety thousand, nine hundred forty-eight".