746744731 has 2 divisors, whose sum is σ = 746744732. Its totient is φ = 746744730.

The previous prime is 746744723. The next prime is 746744741. The reversal of 746744731 is 137447647.

746744731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (137447647) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 746744731 - 2³ = 746744723 is a prime.

It is a super-2 number, since 2×746744731² = 1115255386552524722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (746744711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373372365 + 373372366.

It is an arithmetic number, because the mean of its divisors is an integer number (373372366).

Almost surely, 2^746744731 is an apocalyptic number.

746744731 is a deficient number, since it is larger than the sum of its proper divisors (1).

746744731 is an equidigital number, since it uses as much as digits as its factorization.

746744731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 395136, while the sum is 43.

The square root of 746744731 is about 27326.6304362613. The cubic root of 746744731 is about 907.2438975084.

The spelling of 746744731 in words is "seven hundred forty-six million, seven hundred forty-four thousand, seven hundred thirty-one".