679635433 has 2 divisors, whose sum is σ = 679635434. Its totient is φ = 679635432.

The previous prime is 679635421. The next prime is 679635443. The reversal of 679635433 is 334536976.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 449567209 + 230068224 = 21203^2 + 15168^2 .

It is a cyclic number.

It is not a de Polignac number, because 679635433 - 2²⁵ = 646081001 is a prime.

It is not a weakly prime, because it can be changed into another prime (679635403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339817716 + 339817717.

It is an arithmetic number, because the mean of its divisors is an integer number (339817717).

Almost surely, 2^679635433 is an apocalyptic number.

It is an amenable number.

679635433 is a deficient number, since it is larger than the sum of its proper divisors (1).

679635433 is an equidigital number, since it uses as much as digits as its factorization.

679635433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1224720, while the sum is 46.

The square root of 679635433 is about 26069.8184305146. The cubic root of 679635433 is about 879.2087554563.

The spelling of 679635433 in words is "six hundred seventy-nine million, six hundred thirty-five thousand, four hundred thirty-three".