457870647 has 16 divisors (see below), whose sum is σ = 680127840. Its totient is φ = 272049792.

The previous prime is 457870631. The next prime is 457870661. The reversal of 457870647 is 746078754.

It is not a de Polignac number, because 457870647 - 2⁴ = 457870631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 457870596 and 457870605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457870627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201288 + ... + 203549.

It is an arithmetic number, because the mean of its divisors is an integer number (42507990).

Almost surely, 2^457870647 is an apocalyptic number.

457870647 is a deficient number, since it is larger than the sum of its proper divisors (222257193).

457870647 is a wasteful number, since it uses less digits than its factorization.

457870647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404882.

The product of its (nonzero) digits is 1317120, while the sum is 48.

The square root of 457870647 is about 21397.9122112415. The cubic root of 457870647 is about 770.7513030202.

The spelling of 457870647 in words is "four hundred fifty-seven million, eight hundred seventy thousand, six hundred forty-seven".