731713397 has 2 divisors, whose sum is σ = 731713398. Its totient is φ = 731713396.

The previous prime is 731713393. The next prime is 731713453. The reversal of 731713397 is 793317137.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 729756196 + 1957201 = 27014^2 + 1399^2 .

It is a cyclic number.

It is not a de Polignac number, because 731713397 - 2² = 731713393 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (731713393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365856698 + 365856699.

It is an arithmetic number, because the mean of its divisors is an integer number (365856699).

Almost surely, 2^731713397 is an apocalyptic number.

It is an amenable number.

731713397 is a deficient number, since it is larger than the sum of its proper divisors (1).

731713397 is an equidigital number, since it uses as much as digits as its factorization.

731713397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 83349, while the sum is 41.

The square root of 731713397 is about 27050.2014225403. The cubic root of 731713397 is about 901.1152417488.

The spelling of 731713397 in words is "seven hundred thirty-one million, seven hundred thirteen thousand, three hundred ninety-seven".