679206923 has 2 divisors, whose sum is σ = 679206924. Its totient is φ = 679206922.

The previous prime is 679206919. The next prime is 679206937. The reversal of 679206923 is 329602976.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 679206923 - 2² = 679206919 is a prime.

It is a super-2 number, since 2×679206923² = 922644088502255858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (679206023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339603461 + 339603462.

It is an arithmetic number, because the mean of its divisors is an integer number (339603462).

Almost surely, 2^679206923 is an apocalyptic number.

679206923 is a deficient number, since it is larger than the sum of its proper divisors (1).

679206923 is an equidigital number, since it uses as much as digits as its factorization.

679206923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 44.

The square root of 679206923 is about 26061.5986270988. The cubic root of 679206923 is about 879.0239362952.

The spelling of 679206923 in words is "six hundred seventy-nine million, two hundred six thousand, nine hundred twenty-three".