457847449 has 2 divisors, whose sum is σ = 457847450. Its totient is φ = 457847448.

The previous prime is 457847399. The next prime is 457847461. The reversal of 457847449 is 944748754.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 235837449 + 222010000 = 15357^2 + 14900^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-457847449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 457847396 and 457847405.

It is not a weakly prime, because it can be changed into another prime (457847479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228923724 + 228923725.

It is an arithmetic number, because the mean of its divisors is an integer number (228923725).

Almost surely, 2^457847449 is an apocalyptic number.

It is an amenable number.

457847449 is a deficient number, since it is larger than the sum of its proper divisors (1).

457847449 is an equidigital number, since it uses as much as digits as its factorization.

457847449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4515840, while the sum is 52.

The square root of 457847449 is about 21397.3701421460. The cubic root of 457847449 is about 770.7382861046.

The spelling of 457847449 in words is "four hundred fifty-seven million, eight hundred forty-seven thousand, four hundred forty-nine".