679069619 has 2 divisors, whose sum is σ = 679069620. Its totient is φ = 679069618.

The previous prime is 679069613. The next prime is 679069637. The reversal of 679069619 is 916960976.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 679069619 - 2²⁴ = 662292403 is a prime.

It is a super-2 number, since 2×679069619² = 922271094897610322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (679069613) 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 as a sum of consecutive naturals, namely, 339534809 + 339534810.

It is an arithmetic number, because the mean of its divisors is an integer number (339534810).

Almost surely, 2^679069619 is an apocalyptic number.

679069619 is a deficient number, since it is larger than the sum of its proper divisors (1).

679069619 is an equidigital number, since it uses as much as digits as its factorization.

679069619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1102248, while the sum is 53.

The square root of 679069619 is about 26058.9642733551. The cubic root of 679069619 is about 878.9646997394.

The spelling of 679069619 in words is "six hundred seventy-nine million, sixty-nine thousand, six hundred nineteen".