723371213 has 2 divisors, whose sum is σ = 723371214. Its totient is φ = 723371212.

The previous prime is 723371203. The next prime is 723371221. The reversal of 723371213 is 312173327.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 666775684 + 56595529 = 25822^2 + 7523^2 .

It is a cyclic number.

It is not a de Polignac number, because 723371213 - 2¹⁰ = 723370189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (723371203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361685606 + 361685607.

It is an arithmetic number, because the mean of its divisors is an integer number (361685607).

Almost surely, 2^723371213 is an apocalyptic number.

It is an amenable number.

723371213 is a deficient number, since it is larger than the sum of its proper divisors (1).

723371213 is an equidigital number, since it uses as much as digits as its factorization.

723371213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5292, while the sum is 29.

The square root of 723371213 is about 26895.5612137022. The cubic root of 723371213 is about 897.6776392820.

The spelling of 723371213 in words is "seven hundred twenty-three million, three hundred seventy-one thousand, two hundred thirteen".