713981 has 2 divisors, whose sum is σ = 713982. Its totient is φ = 713980.

The previous prime is 713957. The next prime is 713987. The reversal of 713981 is 189317.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 525625 + 188356 = 725^2 + 434^2 .

It is a cyclic number.

It is not a de Polignac number, because 713981 - 2⁶ = 713917 is a prime.

It is a super-2 number, since 2×713981² = 1019537736722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 713981.

It is not a weakly prime, because it can be changed into another prime (713987) 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, 356990 + 356991.

It is an arithmetic number, because the mean of its divisors is an integer number (356991).

2⁷¹³⁹⁸¹ is an apocalyptic number.

It is an amenable number.

713981 is a deficient number, since it is larger than the sum of its proper divisors (1).

713981 is an equidigital number, since it uses as much as digits as its factorization.

713981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 29.

The square root of 713981 is about 844.9739640959. The cubic root of 713981 is about 89.3776403934.

The spelling of 713981 in words is "seven hundred thirteen thousand, nine hundred eighty-one".