731063243 has 2 divisors, whose sum is σ = 731063244. Its totient is φ = 731063242.

The previous prime is 731063237. The next prime is 731063287. The reversal of 731063243 is 342360137.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-731063243 is a prime.

It is not a weakly prime, because it can be changed into another prime (731063293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365531621 + 365531622.

It is an arithmetic number, because the mean of its divisors is an integer number (365531622).

Almost surely, 2^731063243 is an apocalyptic number.

731063243 is a deficient number, since it is larger than the sum of its proper divisors (1).

731063243 is an equidigital number, since it uses as much as digits as its factorization.

731063243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 731063243 is about 27038.1812073224. The cubic root of 731063243 is about 900.8482714262.

The spelling of 731063243 in words is "seven hundred thirty-one million, sixty-three thousand, two hundred forty-three".