457823217 has 16 divisors (see below), whose sum is σ = 617439680. Its totient is φ = 301724352.

The previous prime is 457823173. The next prime is 457823231. The reversal of 457823217 is 712328754.

It is not a de Polignac number, because 457823217 - 2⁸ = 457822961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (457823017) 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 in 15 ways as a sum of consecutive naturals, for example, 169683 + ... + 172359.

It is an arithmetic number, because the mean of its divisors is an integer number (38589980).

Almost surely, 2^457823217 is an apocalyptic number.

It is an amenable number.

457823217 is a deficient number, since it is larger than the sum of its proper divisors (159616463).

457823217 is a wasteful number, since it uses less digits than its factorization.

457823217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3312.

The product of its digits is 94080, while the sum is 39.

The square root of 457823217 is about 21396.8038968440. The cubic root of 457823217 is about 770.7246885190.

The spelling of 457823217 in words is "four hundred fifty-seven million, eight hundred twenty-three thousand, two hundred seventeen".