4997998 has 8 divisors (see below), whose sum is σ = 7518960. Its totient is φ = 2491680.

The previous prime is 4997989. The next prime is 4998001. The reversal of 4997998 is 8997994.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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, 2763 + ... + 4198.

It is an arithmetic number, because the mean of its divisors is an integer number (939870).

Almost surely, 2^4997998 is an apocalyptic number.

4997998 is a deficient number, since it is larger than the sum of its proper divisors (2520962).

4997998 is a wasteful number, since it uses less digits than its factorization.

4997998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7322.

The product of its digits is 1469664, while the sum is 55.

The square root of 4997998 is about 2235.6202718709. The cubic root of 4997998 is about 170.9747691420.

It can be divided in two parts, 4997 and 998, that added together give a palindrome (5995).

The spelling of 4997998 in words is "four million, nine hundred ninety-seven thousand, nine hundred ninety-eight".