744612731 has 2 divisors, whose sum is σ = 744612732. Its totient is φ = 744612730.

The previous prime is 744612727. The next prime is 744612751. The reversal of 744612731 is 137216447.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 744612731 - 2² = 744612727 is a prime.

It is a super-2 number, since 2×744612731² = 1108896238334556722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 744612691 and 744612700.

It is not a weakly prime, because it can be changed into another prime (744612751) 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 as a sum of consecutive naturals, namely, 372306365 + 372306366.

It is an arithmetic number, because the mean of its divisors is an integer number (372306366).

Almost surely, 2^744612731 is an apocalyptic number.

744612731 is a deficient number, since it is larger than the sum of its proper divisors (1).

744612731 is an equidigital number, since it uses as much as digits as its factorization.

744612731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 35.

The square root of 744612731 is about 27287.5929865571. The cubic root of 744612731 is about 906.3796629948.

The spelling of 744612731 in words is "seven hundred forty-four million, six hundred twelve thousand, seven hundred thirty-one".