679765633 has 2 divisors, whose sum is σ = 679765634. Its totient is φ = 679765632.

The previous prime is 679765627. The next prime is 679765643. The reversal of 679765633 is 336567976.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 663217009 + 16548624 = 25753^2 + 4068^2 .

It is a cyclic number.

It is not a de Polignac number, because 679765633 - 2¹⁷ = 679634561 is a prime.

It is not a weakly prime, because it can be changed into another prime (679765643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339882816 + 339882817.

It is an arithmetic number, because the mean of its divisors is an integer number (339882817).

Almost surely, 2^679765633 is an apocalyptic number.

It is an amenable number.

679765633 is a deficient number, since it is larger than the sum of its proper divisors (1).

679765633 is an equidigital number, since it uses as much as digits as its factorization.

679765633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4286520, while the sum is 52.

The square root of 679765633 is about 26072.3154514516. The cubic root of 679765633 is about 879.2648961778.

The spelling of 679765633 in words is "six hundred seventy-nine million, seven hundred sixty-five thousand, six hundred thirty-three".