679165497 has 24 divisors (see below), whose sum is σ = 995946120. Its totient is φ = 445927680.

The previous prime is 679165493. The next prime is 679165519. The reversal of 679165497 is 794561976.

679165497 is a `hidden beast` number, since 6 + 7 + 91 + 6 + 549 + 7 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 72233001 + 606932496 = 8499^2 + 24636^2 .

It is not a de Polignac number, because 679165497 - 2² = 679165493 is a prime.

It is a super-2 number, since 2×679165497² = 922531544630514018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (679165493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 220347 + ... + 223407.

It is an arithmetic number, because the mean of its divisors is an integer number (41497755).

Almost surely, 2^679165497 is an apocalyptic number.

It is an amenable number.

679165497 is a deficient number, since it is larger than the sum of its proper divisors (316780623).

679165497 is a wasteful number, since it uses less digits than its factorization.

679165497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3433 (or 3430 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The square root of 679165497 is about 26060.8038440874. The cubic root of 679165497 is about 879.0060648706.

It can be divided in two parts, 679 and 165497, that added together give a triangular number (166176 = T₅₇₆).

The spelling of 679165497 in words is "six hundred seventy-nine million, one hundred sixty-five thousand, four hundred ninety-seven".