679336385 has 32 divisors (see below), whose sum is σ = 1008709632. Its totient is φ = 427691520.

The previous prime is 679336381. The next prime is 679336417. The reversal of 679336385 is 583633976.

It is not a de Polignac number, because 679336385 - 2² = 679336381 is a prime.

It is a super-2 number, since 2×679336385² = 922995847969736450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (679336381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82997 + ... + 90813.

It is an arithmetic number, because the mean of its divisors is an integer number (31522176).

Almost surely, 2^679336385 is an apocalyptic number.

679336385 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

679336385 is a deficient number, since it is larger than the sum of its proper divisors (329373247).

679336385 is a wasteful number, since it uses less digits than its factorization.

679336385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8033.

The product of its digits is 2449440, while the sum is 50.

The square root of 679336385 is about 26064.0822781083. The cubic root of 679336385 is about 879.0797822941.

The spelling of 679336385 in words is "six hundred seventy-nine million, three hundred thirty-six thousand, three hundred eighty-five".