457689 has 4 divisors (see below), whose sum is σ = 610256. Its totient is φ = 305124.

The previous prime is 457687. The next prime is 457697. The reversal of 457689 is 986754.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 457689 - 2¹ = 457687 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (457687) 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, 76279 + ... + 76284.

It is an arithmetic number, because the mean of its divisors is an integer number (152564).

2⁴⁵⁷⁶⁸⁹ is an apocalyptic number.

It is an amenable number.

457689 is a deficient number, since it is larger than the sum of its proper divisors (152567).

457689 is a wasteful number, since it uses less digits than its factorization.

457689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152566.

The product of its digits is 60480, while the sum is 39.

The square root of 457689 is about 676.5271613173. The cubic root of 457689 is about 77.0649365074.

The spelling of 457689 in words is "four hundred fifty-seven thousand, six hundred eighty-nine".