726969133 has 4 divisors (see below), whose sum is σ = 793057248. Its totient is φ = 660881020.

The previous prime is 726969109. The next prime is 726969143. The reversal of 726969133 is 331969627.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 726969133 - 2⁵ = 726969101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726969143) 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, 33044041 + ... + 33044062.

It is an arithmetic number, because the mean of its divisors is an integer number (198264312).

Almost surely, 2^726969133 is an apocalyptic number.

It is an amenable number.

726969133 is a deficient number, since it is larger than the sum of its proper divisors (66088115).

726969133 is a wasteful number, since it uses less digits than its factorization.

726969133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66088114.

The product of its digits is 367416, while the sum is 46.

The square root of 726969133 is about 26962.3651225185. The cubic root of 726969133 is about 899.1634749775.

The spelling of 726969133 in words is "seven hundred twenty-six million, nine hundred sixty-nine thousand, one hundred thirty-three".