744302731 has 2 divisors, whose sum is σ = 744302732. Its totient is φ = 744302730.

The previous prime is 744302729. The next prime is 744302771. The reversal of 744302731 is 137203447.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 744302731 - 2¹ = 744302729 is a prime.

It is a super-2 number, since 2×744302731² = 1107973110748116722, which contains 22 as substring.

Together with 744302729, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 744302693 and 744302702.

It is not a weakly prime, because it can be changed into another prime (744302771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372151365 + 372151366.

It is an arithmetic number, because the mean of its divisors is an integer number (372151366).

Almost surely, 2^744302731 is an apocalyptic number.

744302731 is a deficient number, since it is larger than the sum of its proper divisors (1).

744302731 is an equidigital number, since it uses as much as digits as its factorization.

744302731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 744302731 is about 27281.9121580581. The cubic root of 744302731 is about 906.2538630608.

The spelling of 744302731 in words is "seven hundred forty-four million, three hundred two thousand, seven hundred thirty-one".