679514449 has 2 divisors, whose sum is σ = 679514450. Its totient is φ = 679514448.

The previous prime is 679514411. The next prime is 679514501. The reversal of 679514449 is 944415976.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 656999424 + 22515025 = 25632^2 + 4745^2 .

It is a cyclic number.

It is not a de Polignac number, because 679514449 - 2⁷ = 679514321 is a prime.

It is not a weakly prime, because it can be changed into another prime (679511449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339757224 + 339757225.

It is an arithmetic number, because the mean of its divisors is an integer number (339757225).

Almost surely, 2^679514449 is an apocalyptic number.

It is an amenable number.

679514449 is a deficient number, since it is larger than the sum of its proper divisors (1).

679514449 is an equidigital number, since it uses as much as digits as its factorization.

679514449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 49.

The square root of 679514449 is about 26067.4979428406. The cubic root of 679514449 is about 879.1565821394.

The spelling of 679514449 in words is "six hundred seventy-nine million, five hundred fourteen thousand, four hundred forty-nine".