726468391 has 6 divisors (see below), whose sum is σ = 798514976. Its totient is φ = 660425700.

The previous prime is 726468389. The next prime is 726468427. The reversal of 726468391 is 193864627.

726468391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 726468391 - 2¹ = 726468389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726468371) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3001815 + ... + 3002056.

Almost surely, 2^726468391 is an apocalyptic number.

726468391 is a deficient number, since it is larger than the sum of its proper divisors (72046585).

726468391 is a wasteful number, since it uses less digits than its factorization.

726468391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6003893 (or 6003882 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The square root of 726468391 is about 26953.0775793786. The cubic root of 726468391 is about 898.9569772899.

The spelling of 726468391 in words is "seven hundred twenty-six million, four hundred sixty-eight thousand, three hundred ninety-one".