4971857 has 4 divisors (see below), whose sum is σ = 5423856. Its totient is φ = 4519860.

The previous prime is 4971851. The next prime is 4971859. The reversal of 4971857 is 7581794.

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 4971857 - 2¹² = 4967761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4971851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225983 + ... + 226004.

It is an arithmetic number, because the mean of its divisors is an integer number (1355964).

Almost surely, 2^4971857 is an apocalyptic number.

It is an amenable number.

4971857 is a deficient number, since it is larger than the sum of its proper divisors (451999).

4971857 is a wasteful number, since it uses less digits than its factorization.

4971857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451998.

The product of its digits is 70560, while the sum is 41.

The square root of 4971857 is about 2229.7661312344. The cubic root of 4971857 is about 170.6761651581.

The spelling of 4971857 in words is "four million, nine hundred seventy-one thousand, eight hundred fifty-seven".