731116457 has 2 divisors, whose sum is σ = 731116458. Its totient is φ = 731116456.

The previous prime is 731116439. The next prime is 731116459. The reversal of 731116457 is 754611137.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 573889936 + 157226521 = 23956^2 + 12539^2 .

It is a cyclic number.

It is not a de Polignac number, because 731116457 - 2²⁶ = 664007593 is a prime.

Together with 731116459, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (731116459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365558228 + 365558229.

It is an arithmetic number, because the mean of its divisors is an integer number (365558229).

Almost surely, 2^731116457 is an apocalyptic number.

It is an amenable number.

731116457 is a deficient number, since it is larger than the sum of its proper divisors (1).

731116457 is an equidigital number, since it uses as much as digits as its factorization.

731116457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 35.

The square root of 731116457 is about 27039.1652422925. The cubic root of 731116457 is about 900.8701284394.

The spelling of 731116457 in words is "seven hundred thirty-one million, one hundred sixteen thousand, four hundred fifty-seven".