523697897 has 2 divisors, whose sum is σ = 523697898. Its totient is φ = 523697896.

The previous prime is 523697821. The next prime is 523697953. The reversal of 523697897 is 798796325.

It is an a-pointer prime, because the next prime (523697953) can be obtained adding 523697897 to its sum of digits (56).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 517062121 + 6635776 = 22739^2 + 2576^2 .

It is a cyclic number.

It is not a de Polignac number, because 523697897 - 2¹⁴ = 523681513 is a prime.

It is not a weakly prime, because it can be changed into another prime (523697497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261848948 + 261848949.

It is an arithmetic number, because the mean of its divisors is an integer number (261848949).

Almost surely, 2^523697897 is an apocalyptic number.

It is an amenable number.

523697897 is a deficient number, since it is larger than the sum of its proper divisors (1).

523697897 is an equidigital number, since it uses as much as digits as its factorization.

523697897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5715360, while the sum is 56.

The square root of 523697897 is about 22884.4466177358. The cubic root of 523697897 is about 806.0468342765.

The spelling of 523697897 in words is "five hundred twenty-three million, six hundred ninety-seven thousand, eight hundred ninety-seven".