679766741 has 2 divisors, whose sum is σ = 679766742. Its totient is φ = 679766740.

The previous prime is 679766719. The next prime is 679766783. The reversal of 679766741 is 147667976.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 678602500 + 1164241 = 26050^2 + 1079^2 .

It is a cyclic number.

It is not a de Polignac number, because 679766741 - 2²² = 675572437 is a prime.

It is a super-2 number, since 2×679766741² = 924165644339522162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (679766341) 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, 339883370 + 339883371.

It is an arithmetic number, because the mean of its divisors is an integer number (339883371).

Almost surely, 2^679766741 is an apocalyptic number.

It is an amenable number.

679766741 is a deficient number, since it is larger than the sum of its proper divisors (1).

679766741 is an equidigital number, since it uses as much as digits as its factorization.

679766741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2667168, while the sum is 53.

The square root of 679766741 is about 26072.3367000352. The cubic root of 679766741 is about 879.2653739037.

The spelling of 679766741 in words is "six hundred seventy-nine million, seven hundred sixty-six thousand, seven hundred forty-one".