726625219 has 2 divisors, whose sum is σ = 726625220. Its totient is φ = 726625218.

The previous prime is 726625153. The next prime is 726625321. The reversal of 726625219 is 912526627.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 726625219 - 2⁷ = 726625091 is a prime.

It is a super-2 number, since 2×726625219² = 1055968417773595922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (726628219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363312609 + 363312610.

It is an arithmetic number, because the mean of its divisors is an integer number (363312610).

Almost surely, 2^726625219 is an apocalyptic number.

726625219 is a deficient number, since it is larger than the sum of its proper divisors (1).

726625219 is an equidigital number, since it uses as much as digits as its factorization.

726625219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 40.

The square root of 726625219 is about 26955.9867005458. The cubic root of 726625219 is about 899.0216607563.

The spelling of 726625219 in words is "seven hundred twenty-six million, six hundred twenty-five thousand, two hundred nineteen".