697462253 has 2 divisors, whose sum is σ = 697462254. Its totient is φ = 697462252.

The previous prime is 697462219. The next prime is 697462261. The reversal of 697462253 is 352264796.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 592338244 + 105124009 = 24338^2 + 10253^2 .

It is a cyclic number.

It is not a de Polignac number, because 697462253 - 2²⁶ = 630353389 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 (697462153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348731126 + 348731127.

It is an arithmetic number, because the mean of its divisors is an integer number (348731127).

Almost surely, 2^697462253 is an apocalyptic number.

It is an amenable number.

697462253 is a deficient number, since it is larger than the sum of its proper divisors (1).

697462253 is an equidigital number, since it uses as much as digits as its factorization.

697462253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 44.

The square root of 697462253 is about 26409.5106543079. The cubic root of 697462253 is about 886.8297140343.

The spelling of 697462253 in words is "six hundred ninety-seven million, four hundred sixty-two thousand, two hundred fifty-three".