726869951 has 4 divisors (see below), whose sum is σ = 726951600. Its totient is φ = 726788304.

The previous prime is 726869929. The next prime is 726869953. The reversal of 726869951 is 159968627.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 726869951 - 2²⁶ = 659761087 is a prime.

It is a Duffinian number.

Its product of digits (1632960) is a multiple of the sum of its prime divisors (81648).

It is a junction number, because it is equal to n+sod(n) for n = 726869893 and 726869902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726869953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25571 + ... + 45908.

It is an arithmetic number, because the mean of its divisors is an integer number (181737900).

Almost surely, 2^726869951 is an apocalyptic number.

726869951 is a deficient number, since it is larger than the sum of its proper divisors (81649).

726869951 is a wasteful number, since it uses less digits than its factorization.

726869951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81648.

The product of its digits is 1632960, while the sum is 53.

The square root of 726869951 is about 26960.5257923506. The cubic root of 726869951 is about 899.1225814999.

The spelling of 726869951 in words is "seven hundred twenty-six million, eight hundred sixty-nine thousand, nine hundred fifty-one".