679676633 has 2 divisors, whose sum is σ = 679676634. Its totient is φ = 679676632.

The previous prime is 679676629. The next prime is 679676663. The reversal of 679676633 is 336676976.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 467770384 + 211906249 = 21628^2 + 14557^2 .

It is a cyclic number.

It is not a de Polignac number, because 679676633 - 2² = 679676629 is a prime.

It is not a weakly prime, because it can be changed into another prime (679676603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339838316 + 339838317.

It is an arithmetic number, because the mean of its divisors is an integer number (339838317).

Almost surely, 2^679676633 is an apocalyptic number.

It is an amenable number.

679676633 is a deficient number, since it is larger than the sum of its proper divisors (1).

679676633 is an equidigital number, since it uses as much as digits as its factorization.

679676633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5143824, while the sum is 53.

The square root of 679676633 is about 26070.6086043268. The cubic root of 679676633 is about 879.2265211912.

The spelling of 679676633 in words is "six hundred seventy-nine million, six hundred seventy-six thousand, six hundred thirty-three".