731041693 has 2 divisors, whose sum is σ = 731041694. Its totient is φ = 731041692.

The previous prime is 731041691. The next prime is 731041697. The reversal of 731041693 is 396140137.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 727812484 + 3229209 = 26978^2 + 1797^2 .

It is a cyclic number.

It is not a de Polignac number, because 731041693 - 2¹ = 731041691 is a prime.

Together with 731041691, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (731041691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365520846 + 365520847.

It is an arithmetic number, because the mean of its divisors is an integer number (365520847).

Almost surely, 2^731041693 is an apocalyptic number.

It is an amenable number.

731041693 is a deficient number, since it is larger than the sum of its proper divisors (1).

731041693 is an equidigital number, since it uses as much as digits as its factorization.

731041693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 731041693 is about 27037.7826938527. The cubic root of 731041693 is about 900.8394197201.

The spelling of 731041693 in words is "seven hundred thirty-one million, forty-one thousand, six hundred ninety-three".