4998857 has 4 divisors (see below), whose sum is σ = 5034960. Its totient is φ = 4962756.

The previous prime is 4998853. The next prime is 4998859. The reversal of 4998857 is 7588994.

4998857 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 4998857 - 2² = 4998853 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4998853) 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, 17843 + ... + 18120.

It is an arithmetic number, because the mean of its divisors is an integer number (1258740).

Almost surely, 2^4998857 is an apocalyptic number.

It is an amenable number.

4998857 is a deficient number, since it is larger than the sum of its proper divisors (36103).

4998857 is a wasteful number, since it uses less digits than its factorization.

4998857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36102.

The product of its digits is 725760, while the sum is 50.

The square root of 4998857 is about 2235.8123803217. The cubic root of 4998857 is about 170.9845636579.

The spelling of 4998857 in words is "four million, nine hundred ninety-eight thousand, eight hundred fifty-seven".