726872919 has 8 divisors (see below), whose sum is σ = 971467632. Its totient is φ = 483430080.

The previous prime is 726872863. The next prime is 726872921. The reversal of 726872919 is 919278627.

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

It is not a de Polignac number, because 726872919 - 2¹¹ = 726870871 is a prime.

It is a super-2 number, since 2×726872919² = 1056688480751161122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726872929) 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 7 ways as a sum of consecutive naturals, for example, 286494 + ... + 289019.

It is an arithmetic number, because the mean of its divisors is an integer number (121433454).

Almost surely, 2^726872919 is an apocalyptic number.

726872919 is a deficient number, since it is larger than the sum of its proper divisors (244594713).

726872919 is a wasteful number, since it uses less digits than its factorization.

726872919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575937.

The product of its digits is 762048, while the sum is 51.

The square root of 726872919 is about 26960.5808357313. The cubic root of 726872919 is about 899.1238052824.

The spelling of 726872919 in words is "seven hundred twenty-six million, eight hundred seventy-two thousand, nine hundred nineteen".