457997147 has 4 divisors (see below), whose sum is σ = 482102280. Its totient is φ = 433892016.

The previous prime is 457997143. The next prime is 457997173. The reversal of 457997147 is 741799754.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 457997147 - 2² = 457997143 is a prime.

It is a super-2 number, since 2×457997147² = 419522773320279218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (457997143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12052538 + ... + 12052575.

It is an arithmetic number, because the mean of its divisors is an integer number (120525570).

Almost surely, 2^457997147 is an apocalyptic number.

457997147 is a deficient number, since it is larger than the sum of its proper divisors (24105133).

457997147 is a wasteful number, since it uses less digits than its factorization.

457997147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24105132.

The product of its digits is 2222640, while the sum is 53.

The square root of 457997147 is about 21400.8679029613. The cubic root of 457997147 is about 770.8222772592.

The spelling of 457997147 in words is "four hundred fifty-seven million, nine hundred ninety-seven thousand, one hundred forty-seven".