4492857 has 4 divisors (see below), whose sum is σ = 5990480. Its totient is φ = 2995236.

The previous prime is 4492853. The next prime is 4492877. The reversal of 4492857 is 7582944.

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 4492857 - 2² = 4492853 is a prime.

It is a D-number.

It is a Duffinian number.

4492857 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4492853) 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, 748807 + ... + 748812.

It is an arithmetic number, because the mean of its divisors is an integer number (1497620).

Almost surely, 2^4492857 is an apocalyptic number.

It is an amenable number.

4492857 is a deficient number, since it is larger than the sum of its proper divisors (1497623).

4492857 is a wasteful number, since it uses less digits than its factorization.

4492857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497622.

The product of its digits is 80640, while the sum is 39.

The square root of 4492857 is about 2119.6360536658. The cubic root of 4492857 is about 165.0089618640.

The spelling of 4492857 in words is "four million, four hundred ninety-two thousand, eight hundred fifty-seven".