679051017 has 6 divisors (see below), whose sum is σ = 980851482. Its totient is φ = 452700672.

The previous prime is 679050947. The next prime is 679051019. The reversal of 679051017 is 710150976.

It can be written as a sum of positive squares in only one way, i.e., 548543241 + 130507776 = 23421^2 + 11424^2 .

It is not a de Polignac number, because 679051017 - 2²³ = 670662409 is a prime.

It is a super-2 number, since 2×679051017² = 922220567377468578, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (679051019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37725048 + ... + 37725065.

It is an arithmetic number, because the mean of its divisors is an integer number (163475247).

Almost surely, 2^679051017 is an apocalyptic number.

It is an amenable number.

679051017 is a deficient number, since it is larger than the sum of its proper divisors (301800465).

679051017 is a wasteful number, since it uses less digits than its factorization.

679051017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75450119 (or 75450116 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 36.

The square root of 679051017 is about 26058.6073495880. The cubic root of 679051017 is about 878.9566737333.

The spelling of 679051017 in words is "six hundred seventy-nine million, fifty-one thousand, seventeen".