4898991 has 4 divisors (see below), whose sum is σ = 6531992. Its totient is φ = 3265992.

The previous prime is 4898981. The next prime is 4899001. The reversal of 4898991 is 1998984.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (4898981) and next prime (4899001).

It is not a de Polignac number, because 4898991 - 2⁷ = 4898863 is a prime.

It is a super-2 number, since 2×4898991² = 48000225636162, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4898991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4898981) 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, 816496 + ... + 816501.

It is an arithmetic number, because the mean of its divisors is an integer number (1632998).

Almost surely, 2^4898991 is an apocalyptic number.

4898991 is a deficient number, since it is larger than the sum of its proper divisors (1633001).

4898991 is a wasteful number, since it uses less digits than its factorization.

4898991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633000.

The product of its digits is 186624, while the sum is 48.

The square root of 4898991 is about 2213.3664405154. The cubic root of 4898991 is about 169.8382660174.

The spelling of 4898991 in words is "four million, eight hundred ninety-eight thousand, nine hundred ninety-one".