679743037 has 2 divisors, whose sum is σ = 679743038. Its totient is φ = 679743036.

The previous prime is 679743019. The next prime is 679743091. The reversal of 679743037 is 730347976.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 457703236 + 222039801 = 21394^2 + 14901^2 .

It is a cyclic number.

It is not a de Polignac number, because 679743037 - 2¹¹ = 679740989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (679743017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339871518 + 339871519.

It is an arithmetic number, because the mean of its divisors is an integer number (339871519).

Almost surely, 2^679743037 is an apocalyptic number.

It is an amenable number.

679743037 is a deficient number, since it is larger than the sum of its proper divisors (1).

679743037 is an equidigital number, since it uses as much as digits as its factorization.

679743037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 666792, while the sum is 46.

The square root of 679743037 is about 26071.8821146460. The cubic root of 679743037 is about 879.2551535603.

The spelling of 679743037 in words is "six hundred seventy-nine million, seven hundred forty-three thousand, thirty-seven".