726866933 has 8 divisors (see below), whose sum is σ = 809772600. Its totient is φ = 647817408.

The previous prime is 726866923. The next prime is 726866947. The reversal of 726866933 is 339668627.

It can be written as a sum of positive squares in 4 ways, for example, as 9591409 + 717275524 = 3097^2 + 26782^2 .

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 726866933 - 2¹² = 726862837 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726866923) 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, 963638 + ... + 964391.

It is an arithmetic number, because the mean of its divisors is an integer number (101221575).

Almost surely, 2^726866933 is an apocalyptic number.

It is an amenable number.

726866933 is a deficient number, since it is larger than the sum of its proper divisors (82905667).

726866933 is a wasteful number, since it uses less digits than its factorization.

726866933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1928071.

The product of its digits is 1959552, while the sum is 50.

The square root of 726866933 is about 26960.4698215740. The cubic root of 726866933 is about 899.1213370977.

The spelling of 726866933 in words is "seven hundred twenty-six million, eight hundred sixty-six thousand, nine hundred thirty-three".