679544799 has 8 divisors (see below), whose sum is σ = 906771072. Its totient is φ = 452674200.

The previous prime is 679544779. The next prime is 679544813. The reversal of 679544799 is 997445976.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 679544799 - 2⁹ = 679544287 is a prime.

It is a super-2 number, since 2×679544799² = 923562267695900802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679544759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84427 + ... + 92124.

It is an arithmetic number, because the mean of its divisors is an integer number (113346384).

Almost surely, 2^679544799 is an apocalyptic number.

679544799 is a deficient number, since it is larger than the sum of its proper divisors (227226273).

679544799 is a wasteful number, since it uses less digits than its factorization.

679544799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177837.

The product of its digits is 17146080, while the sum is 60.

The square root of 679544799 is about 26068.0800789011. The cubic root of 679544799 is about 879.1696708996.

The spelling of 679544799 in words is "six hundred seventy-nine million, five hundred forty-four thousand, seven hundred ninety-nine".