523222697 has 2 divisors, whose sum is σ = 523222698. Its totient is φ = 523222696.

The previous prime is 523222691. The next prime is 523222729. The reversal of 523222697 is 796222325.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 513883561 + 9339136 = 22669^2 + 3056^2 .

It is a cyclic number.

It is not a de Polignac number, because 523222697 - 2⁶ = 523222633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 523222697.

It is not a weakly prime, because it can be changed into another prime (523222691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261611348 + 261611349.

It is an arithmetic number, because the mean of its divisors is an integer number (261611349).

Almost surely, 2^523222697 is an apocalyptic number.

It is an amenable number.

523222697 is a deficient number, since it is larger than the sum of its proper divisors (1).

523222697 is an equidigital number, since it uses as much as digits as its factorization.

523222697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 38.

The square root of 523222697 is about 22874.0616638148. The cubic root of 523222697 is about 805.8029599803.

The spelling of 523222697 in words is "five hundred twenty-three million, two hundred twenty-two thousand, six hundred ninety-seven".