457243247 has 2 divisors, whose sum is σ = 457243248. Its totient is φ = 457243246.

The previous prime is 457243223. The next prime is 457243253. The reversal of 457243247 is 742342754.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 457243247 - 2¹⁶ = 457177711 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 457243247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (457243147) 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, 228621623 + 228621624.

It is an arithmetic number, because the mean of its divisors is an integer number (228621624).

Almost surely, 2^457243247 is an apocalyptic number.

457243247 is a deficient number, since it is larger than the sum of its proper divisors (1).

457243247 is an equidigital number, since it uses as much as digits as its factorization.

457243247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 188160, while the sum is 38.

The square root of 457243247 is about 21383.2468769362. The cubic root of 457243247 is about 770.3990999033.

The spelling of 457243247 in words is "four hundred fifty-seven million, two hundred forty-three thousand, two hundred forty-seven".