4986857 has 4 divisors (see below), whose sum is σ = 5071440. Its totient is φ = 4902276.

The previous prime is 4986853. The next prime is 4986887. The reversal of 4986857 is 7586894.

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 a cyclic number.

It is not a de Polignac number, because 4986857 - 2² = 4986853 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4986853) 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, 42203 + ... + 42320.

It is an arithmetic number, because the mean of its divisors is an integer number (1267860).

Almost surely, 2^4986857 is an apocalyptic number.

It is an amenable number.

4986857 is a deficient number, since it is larger than the sum of its proper divisors (84583).

4986857 is an equidigital number, since it uses as much as digits as its factorization.

4986857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84582.

The product of its digits is 483840, while the sum is 47.

The square root of 4986857 is about 2233.1271795399. The cubic root of 4986857 is about 170.8476351038.

The spelling of 4986857 in words is "four million, nine hundred eighty-six thousand, eight hundred fifty-seven".