711985693 has 2 divisors, whose sum is σ = 711985694. Its totient is φ = 711985692.

The previous prime is 711985643. The next prime is 711985697. The reversal of 711985693 is 396589117.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 619113924 + 92871769 = 24882^2 + 9637^2 .

It is a cyclic number.

It is not a de Polignac number, because 711985693 - 2⁹ = 711985181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (711985697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355992846 + 355992847.

It is an arithmetic number, because the mean of its divisors is an integer number (355992847).

Almost surely, 2^711985693 is an apocalyptic number.

It is an amenable number.

711985693 is a deficient number, since it is larger than the sum of its proper divisors (1).

711985693 is an equidigital number, since it uses as much as digits as its factorization.

711985693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 49.

The square root of 711985693 is about 26683.0600381590. The cubic root of 711985693 is about 892.9430380742.

The spelling of 711985693 in words is "seven hundred eleven million, nine hundred eighty-five thousand, six hundred ninety-three".