726860999 has 12 divisors (see below), whose sum is σ = 756189360. Its totient is φ = 698616000.

The previous prime is 726860983. The next prime is 726861007. The reversal of 726860999 is 999068627.

It is not a de Polignac number, because 726860999 - 2⁴ = 726860983 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 (726860699) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142607 + ... + 147615.

It is an arithmetic number, because the mean of its divisors is an integer number (63015780).

Almost surely, 2^726860999 is an apocalyptic number.

726860999 is a deficient number, since it is larger than the sum of its proper divisors (29328361).

726860999 is a wasteful number, since it uses less digits than its factorization.

726860999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5222 (or 5191 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 56.

The square root of 726860999 is about 26960.3597713384. The cubic root of 726860999 is about 899.1188903406.

The spelling of 726860999 in words is "seven hundred twenty-six million, eight hundred sixty thousand, nine hundred ninety-nine".