726315719 has 2 divisors, whose sum is σ = 726315720. Its totient is φ = 726315718.

The previous prime is 726315691. The next prime is 726315743. The reversal of 726315719 is 917513627.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-726315719 is a prime.

It is a super-2 number, since 2×726315719² = 1055069047332973922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (726315119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363157859 + 363157860.

It is an arithmetic number, because the mean of its divisors is an integer number (363157860).

Almost surely, 2^726315719 is an apocalyptic number.

726315719 is a deficient number, since it is larger than the sum of its proper divisors (1).

726315719 is an equidigital number, since it uses as much as digits as its factorization.

726315719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 79380, while the sum is 41.

The square root of 726315719 is about 26950.2452493479. The cubic root of 726315719 is about 898.8939990164.

The spelling of 726315719 in words is "seven hundred twenty-six million, three hundred fifteen thousand, seven hundred nineteen".