4998257 has 4 divisors (see below), whose sum is σ = 5452656. Its totient is φ = 4543860.

The previous prime is 4998241. The next prime is 4998319. The reversal of 4998257 is 7528994.

It is a happy number.

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 4998257 - 2⁴ = 4998241 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4998557) 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, 227183 + ... + 227204.

It is an arithmetic number, because the mean of its divisors is an integer number (1363164).

Almost surely, 2^4998257 is an apocalyptic number.

It is an amenable number.

4998257 is a deficient number, since it is larger than the sum of its proper divisors (454399).

4998257 is a wasteful number, since it uses less digits than its factorization.

4998257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454398.

The product of its digits is 181440, while the sum is 44.

The square root of 4998257 is about 2235.6781968790. The cubic root of 4998257 is about 170.9777224378.

The spelling of 4998257 in words is "four million, nine hundred ninety-eight thousand, two hundred fifty-seven".