726899633 has 4 divisors (see below), whose sum is σ = 737137728. Its totient is φ = 716661540.

The previous prime is 726899599. The next prime is 726899699. The reversal of 726899633 is 336998627.

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 726899633 - 2²⁴ = 710122417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (726899233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5118941 + ... + 5119082.

It is an arithmetic number, because the mean of its divisors is an integer number (184284432).

Almost surely, 2^726899633 is an apocalyptic number.

It is an amenable number.

726899633 is a deficient number, since it is larger than the sum of its proper divisors (10238095).

726899633 is a wasteful number, since it uses less digits than its factorization.

726899633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10238094.

The product of its digits is 2939328, while the sum is 53.

The square root of 726899633 is about 26961.0762581912. The cubic root of 726899633 is about 899.1348199997.

The spelling of 726899633 in words is "seven hundred twenty-six million, eight hundred ninety-nine thousand, six hundred thirty-three".