679256799 has 36 divisors (see below), whose sum is σ = 1006466328. Its totient is φ = 407297280.

The previous prime is 679256797. The next prime is 679256807. The reversal of 679256799 is 997652976.

It is not a de Polignac number, because 679256799 - 2¹ = 679256797 is a prime.

It is a super-2 number, since 2×679256799² = 922779597975452802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679256791) 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 35 ways as a sum of consecutive naturals, for example, 851869 + ... + 852665.

It is an arithmetic number, because the mean of its divisors is an integer number (27957398).

Almost surely, 2^679256799 is an apocalyptic number.

679256799 is a deficient number, since it is larger than the sum of its proper divisors (327209529).

679256799 is a wasteful number, since it uses less digits than its factorization.

679256799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908 (or 854 counting only the distinct ones).

The product of its digits is 12859560, while the sum is 60.

The square root of 679256799 is about 26062.5554963438. Note that the first 3 decimals coincide. The cubic root of 679256799 is about 879.0454521363.

The spelling of 679256799 in words is "six hundred seventy-nine million, two hundred fifty-six thousand, seven hundred ninety-nine".