726049997 has 2 divisors, whose sum is σ = 726049998. Its totient is φ = 726049996.

The previous prime is 726049979. The next prime is 726050029. The reversal of 726049997 is 799940627.

It is a happy number.

726049997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (726049979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 719258761 + 6791236 = 26819^2 + 2606^2 .

It is a cyclic number.

It is not a de Polignac number, because 726049997 - 2²⁸ = 457614541 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (726049967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363024998 + 363024999.

It is an arithmetic number, because the mean of its divisors is an integer number (363024999).

Almost surely, 2^726049997 is an apocalyptic number.

It is an amenable number.

726049997 is a deficient number, since it is larger than the sum of its proper divisors (1).

726049997 is an equidigital number, since it uses as much as digits as its factorization.

726049997 is an odious number, because the sum of its binary digits is odd.

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

The square root of 726049997 is about 26945.3149359958. The cubic root of 726049997 is about 898.7843657723.

The spelling of 726049997 in words is "seven hundred twenty-six million, forty-nine thousand, nine hundred ninety-seven".