726478933 has 2 divisors, whose sum is σ = 726478934. Its totient is φ = 726478932.

The previous prime is 726478931. The next prime is 726478939. The reversal of 726478933 is 339874627.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 719205124 + 7273809 = 26818^2 + 2697^2 .

It is a cyclic number.

It is not a de Polignac number, because 726478933 - 2¹ = 726478931 is a prime.

Together with 726478931, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (726478931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363239466 + 363239467.

It is an arithmetic number, because the mean of its divisors is an integer number (363239467).

Almost surely, 2^726478933 is an apocalyptic number.

It is an amenable number.

726478933 is a deficient number, since it is larger than the sum of its proper divisors (1).

726478933 is an equidigital number, since it uses as much as digits as its factorization.

726478933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 49.

The square root of 726478933 is about 26953.2731407523. The cubic root of 726478933 is about 898.9613256134.

The spelling of 726478933 in words is "seven hundred twenty-six million, four hundred seventy-eight thousand, nine hundred thirty-three".