726431411 has 6 divisors (see below), whose sum is σ = 752345412. Its totient is φ = 701381240.

The previous prime is 726431383. The next prime is 726431413. The reversal of 726431411 is 114134627.

It is a happy number.

It is not a de Polignac number, because 726431411 - 2⁶ = 726431347 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (726431413) 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 5 ways as a sum of consecutive naturals, for example, 431045 + ... + 432726.

It is an arithmetic number, because the mean of its divisors is an integer number (125390902).

Almost surely, 2^726431411 is an apocalyptic number.

726431411 is a deficient number, since it is larger than the sum of its proper divisors (25914001).

726431411 is an equidigital number, since it uses as much as digits as its factorization.

726431411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863829 (or 863800 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 726431411 is about 26952.3915636442. The cubic root of 726431411 is about 898.9417235897.

The spelling of 726431411 in words is "seven hundred twenty-six million, four hundred thirty-one thousand, four hundred eleven".