971693 has 2 divisors, whose sum is σ = 971694. Its totient is φ = 971692.

The previous prime is 971683. The next prime is 971699. The reversal of 971693 is 396179.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 946729 + 24964 = 973^2 + 158^2 .

It is a cyclic number.

It is not a de Polignac number, because 971693 - 2¹⁴ = 955309 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (971699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 485846 + 485847.

It is an arithmetic number, because the mean of its divisors is an integer number (485847).

2⁹⁷¹⁶⁹³ is an apocalyptic number.

It is an amenable number.

971693 is a deficient number, since it is larger than the sum of its proper divisors (1).

971693 is an equidigital number, since it uses as much as digits as its factorization.

971693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10206, while the sum is 35.

The square root of 971693 is about 985.7448960050. The cubic root of 971693 is about 99.0473874421.

The spelling of 971693 in words is "nine hundred seventy-one thousand, six hundred ninety-three".