730437731 has 2 divisors, whose sum is σ = 730437732. Its totient is φ = 730437730.

The previous prime is 730437707. The next prime is 730437733. The reversal of 730437731 is 137734037.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 730437731 - 2¹⁸ = 730175587 is a prime.

It is a super-2 number, since 2×730437731² = 1067078557736856722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 730437733, 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 = 730437691 and 730437700.

It is not a weakly prime, because it can be changed into another prime (730437733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365218865 + 365218866.

It is an arithmetic number, because the mean of its divisors is an integer number (365218866).

Almost surely, 2^730437731 is an apocalyptic number.

730437731 is a deficient number, since it is larger than the sum of its proper divisors (1).

730437731 is an equidigital number, since it uses as much as digits as its factorization.

730437731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37044, while the sum is 35.

The square root of 730437731 is about 27026.6115338198. The cubic root of 730437731 is about 900.5912703176.

The spelling of 730437731 in words is "seven hundred thirty million, four hundred thirty-seven thousand, seven hundred thirty-one".