726013763 has 4 divisors (see below), whose sum is σ = 742897848. Its totient is φ = 709129680.

The previous prime is 726013759. The next prime is 726013789. The reversal of 726013763 is 367310627.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 726013763 - 2² = 726013759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (726013733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8441978 + ... + 8442063.

It is an arithmetic number, because the mean of its divisors is an integer number (185724462).

Almost surely, 2^726013763 is an apocalyptic number.

726013763 is a deficient number, since it is larger than the sum of its proper divisors (16884085).

726013763 is a wasteful number, since it uses less digits than its factorization.

726013763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16884084.

The product of its (nonzero) digits is 31752, while the sum is 35.

The square root of 726013763 is about 26944.6425658237. The cubic root of 726013763 is about 898.7694140497.

The spelling of 726013763 in words is "seven hundred twenty-six million, thirteen thousand, seven hundred sixty-three".