726272461 has 2 divisors, whose sum is σ = 726272462. Its totient is φ = 726272460.

The previous prime is 726272447. The next prime is 726272471. The reversal of 726272461 is 164272627.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 455011561 + 271260900 = 21331^2 + 16470^2 .

It is a cyclic number.

It is not a de Polignac number, because 726272461 - 2⁷ = 726272333 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 726272461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (726272411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363136230 + 363136231.

It is an arithmetic number, because the mean of its divisors is an integer number (363136231).

Almost surely, 2^726272461 is an apocalyptic number.

It is an amenable number.

726272461 is a deficient number, since it is larger than the sum of its proper divisors (1).

726272461 is an equidigital number, since it uses as much as digits as its factorization.

726272461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 37.

The square root of 726272461 is about 26949.4426844044. The cubic root of 726272461 is about 898.8761531827.

The spelling of 726272461 in words is "seven hundred twenty-six million, two hundred seventy-two thousand, four hundred sixty-one".