697502213 has 2 divisors, whose sum is σ = 697502214. Its totient is φ = 697502212.

The previous prime is 697502153. The next prime is 697502233. The reversal of 697502213 is 312205796.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 658589569 + 38912644 = 25663^2 + 6238^2 .

It is a cyclic number.

It is not a de Polignac number, because 697502213 - 2⁶ = 697502149 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 (697502233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348751106 + 348751107.

It is an arithmetic number, because the mean of its divisors is an integer number (348751107).

Almost surely, 2^697502213 is an apocalyptic number.

It is an amenable number.

697502213 is a deficient number, since it is larger than the sum of its proper divisors (1).

697502213 is an equidigital number, since it uses as much as digits as its factorization.

697502213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 697502213 is about 26410.2671891066. The cubic root of 697502213 is about 886.8466502142.

The spelling of 697502213 in words is "six hundred ninety-seven million, five hundred two thousand, two hundred thirteen".