523972247 has 2 divisors, whose sum is σ = 523972248. Its totient is φ = 523972246.

The previous prime is 523972237. The next prime is 523972279. The reversal of 523972247 is 742279325.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 523972247 - 2⁴ = 523972231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523972217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261986123 + 261986124.

It is an arithmetic number, because the mean of its divisors is an integer number (261986124).

Almost surely, 2^523972247 is an apocalyptic number.

523972247 is a deficient number, since it is larger than the sum of its proper divisors (1).

523972247 is an equidigital number, since it uses as much as digits as its factorization.

523972247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 41.

The square root of 523972247 is about 22890.4400787752. The cubic root of 523972247 is about 806.1875644859.

The spelling of 523972247 in words is "five hundred twenty-three million, nine hundred seventy-two thousand, two hundred forty-seven".