726085457 has 2 divisors, whose sum is σ = 726085458. Its totient is φ = 726085456.

The previous prime is 726085433. The next prime is 726085553. The reversal of 726085457 is 754580627.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 720868801 + 5216656 = 26849^2 + 2284^2 .

It is a cyclic number.

It is not a de Polignac number, because 726085457 - 2¹² = 726081361 is a prime.

It is not a weakly prime, because it can be changed into another prime (726085957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363042728 + 363042729.

It is an arithmetic number, because the mean of its divisors is an integer number (363042729).

Almost surely, 2^726085457 is an apocalyptic number.

It is an amenable number.

726085457 is a deficient number, since it is larger than the sum of its proper divisors (1).

726085457 is an equidigital number, since it uses as much as digits as its factorization.

726085457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 470400, while the sum is 44.

The square root of 726085457 is about 26945.9729273226. The cubic root of 726085457 is about 898.7989976273.

The spelling of 726085457 in words is "seven hundred twenty-six million, eighty-five thousand, four hundred fifty-seven".