726049979 has 2 divisors, whose sum is σ = 726049980. Its totient is φ = 726049978.

The previous prime is 726049967. The next prime is 726049997. The reversal of 726049979 is 979940627.

It is a happy number.

Together with next prime (726049997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (979940627) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 726049979 - 2²⁴ = 709272763 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 726049979.

It is not a weakly prime, because it can be changed into another prime (726049939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363024989 + 363024990.

It is an arithmetic number, because the mean of its divisors is an integer number (363024990).

Almost surely, 2^726049979 is an apocalyptic number.

726049979 is a deficient number, since it is larger than the sum of its proper divisors (1).

726049979 is an equidigital number, since it uses as much as digits as its factorization.

726049979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1714608, while the sum is 53.

The square root of 726049979 is about 26945.3146019860. The cubic root of 726049979 is about 898.7843583448.

The spelling of 726049979 in words is "seven hundred twenty-six million, forty-nine thousand, nine hundred seventy-nine".