726626513 has 8 divisors (see below), whose sum is σ = 745008000. Its totient is φ = 708312528.

The previous prime is 726626507. The next prime is 726626521. The reversal of 726626513 is 315626627.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 726626513 - 2⁴ = 726626497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (726626503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5288 + ... + 38486.

It is an arithmetic number, because the mean of its divisors is an integer number (93126000).

Almost surely, 2^726626513 is an apocalyptic number.

It is an amenable number.

726626513 is a deficient number, since it is larger than the sum of its proper divisors (18381487).

726626513 is a wasteful number, since it uses less digits than its factorization.

726626513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33751.

The product of its digits is 90720, while the sum is 38.

The square root of 726626513 is about 26956.0107026244. The cubic root of 726626513 is about 899.0221944258.

The spelling of 726626513 in words is "seven hundred twenty-six million, six hundred twenty-six thousand, five hundred thirteen".