743630761 has 2 divisors, whose sum is σ = 743630762. Its totient is φ = 743630760.

The previous prime is 743630753. The next prime is 743630861. The reversal of 743630761 is 167036347.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 743598361 + 32400 = 27269^2 + 180^2 .

It is a cyclic number.

It is not a de Polignac number, because 743630761 - 2³ = 743630753 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 743630761.

It is not a weakly prime, because it can be changed into another prime (743630561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371815380 + 371815381.

It is an arithmetic number, because the mean of its divisors is an integer number (371815381).

Almost surely, 2^743630761 is an apocalyptic number.

It is an amenable number.

743630761 is a deficient number, since it is larger than the sum of its proper divisors (1).

743630761 is an equidigital number, since it uses as much as digits as its factorization.

743630761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 743630761 is about 27269.5940747199. The cubic root of 743630761 is about 905.9810534724.

The spelling of 743630761 in words is "seven hundred forty-three million, six hundred thirty thousand, seven hundred sixty-one".