457544447 has 2 divisors, whose sum is σ = 457544448. Its totient is φ = 457544446.

The previous prime is 457544431. The next prime is 457544489. The reversal of 457544447 is 744445754.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 457544447 - 2⁴ = 457544431 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 457544398 and 457544407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (457544147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228772223 + 228772224.

It is an arithmetic number, because the mean of its divisors is an integer number (228772224).

Almost surely, 2^457544447 is an apocalyptic number.

457544447 is a deficient number, since it is larger than the sum of its proper divisors (1).

457544447 is an equidigital number, since it uses as much as digits as its factorization.

457544447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1254400, while the sum is 44.

The square root of 457544447 is about 21390.2886142287. The cubic root of 457544447 is about 770.5682245268.

The spelling of 457544447 in words is "four hundred fifty-seven million, five hundred forty-four thousand, four hundred forty-seven".