679061731 has 2 divisors, whose sum is σ = 679061732. Its totient is φ = 679061730.

The previous prime is 679061693. The next prime is 679061737. The reversal of 679061731 is 137160976.

It is a happy number.

679061731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 679061731 - 2²¹ = 676964579 is a prime.

It is a super-2 number, since 2×679061731² = 922249669017432722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (679061737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339530865 + 339530866.

It is an arithmetic number, because the mean of its divisors is an integer number (339530866).

Almost surely, 2^679061731 is an apocalyptic number.

679061731 is a deficient number, since it is larger than the sum of its proper divisors (1).

679061731 is an equidigital number, since it uses as much as digits as its factorization.

679061731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 679061731 is about 26058.8129238459. The cubic root of 679061731 is about 878.9612964063.

The spelling of 679061731 in words is "six hundred seventy-nine million, sixty-one thousand, seven hundred thirty-one".