713264021 has 2 divisors, whose sum is σ = 713264022. Its totient is φ = 713264020.

The previous prime is 713264011. The next prime is 713264107. The reversal of 713264021 is 120462317.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 378886225 + 334377796 = 19465^2 + 18286^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-713264021 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 (713264011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356632010 + 356632011.

It is an arithmetic number, because the mean of its divisors is an integer number (356632011).

Almost surely, 2^713264021 is an apocalyptic number.

It is an amenable number.

713264021 is a deficient number, since it is larger than the sum of its proper divisors (1).

713264021 is an equidigital number, since it uses as much as digits as its factorization.

713264021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 713264021 is about 26707.0032201294. The cubic root of 713264021 is about 893.4771272796.

The spelling of 713264021 in words is "seven hundred thirteen million, two hundred sixty-four thousand, twenty-one".