4949857 has 4 divisors (see below), whose sum is σ = 5399856. Its totient is φ = 4499860.

The previous prime is 4949843. The next prime is 4949881. The reversal of 4949857 is 7589494.

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 a de Polignac number, because none of the positive numbers 2^k-4949857 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4949827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224983 + ... + 225004.

It is an arithmetic number, because the mean of its divisors is an integer number (1349964).

Almost surely, 2^4949857 is an apocalyptic number.

It is an amenable number.

4949857 is a deficient number, since it is larger than the sum of its proper divisors (449999).

4949857 is a wasteful number, since it uses less digits than its factorization.

4949857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449998.

The product of its digits is 362880, while the sum is 46.

The square root of 4949857 is about 2224.8274090365. The cubic root of 4949857 is about 170.4240509338.

The spelling of 4949857 in words is "four million, nine hundred forty-nine thousand, eight hundred fifty-seven".