697523 has 2 divisors, whose sum is σ = 697524. Its totient is φ = 697522.

The previous prime is 697519. The next prime is 697553. The reversal of 697523 is 325796.

697523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

697523 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 697523 - 2² = 697519 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 697523.

It is not a weakly prime, because it can be changed into another prime (697513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348761 + 348762.

It is an arithmetic number, because the mean of its divisors is an integer number (348762).

2⁶⁹⁷⁵²³ is an apocalyptic number.

697523 is a deficient number, since it is larger than the sum of its proper divisors (1).

697523 is an equidigital number, since it uses as much as digits as its factorization.

697523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11340, while the sum is 32.

The square root of 697523 is about 835.1784240508. The cubic root of 697523 is about 88.6855460078.

The spelling of 697523 in words is "six hundred ninety-seven thousand, five hundred twenty-three".