4980891 has 4 divisors (see below), whose sum is σ = 6641192. Its totient is φ = 3320592.

The previous prime is 4980889. The next prime is 4980893. The reversal of 4980891 is 1980894.

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 (4980889) and next prime (4980893).

It is not a de Polignac number, because 4980891 - 2¹ = 4980889 is a prime.

It is a D-number.

It is a Duffinian number.

4980891 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4980893) 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, 830146 + ... + 830151.

It is an arithmetic number, because the mean of its divisors is an integer number (1660298).

Almost surely, 2^4980891 is an apocalyptic number.

4980891 is a deficient number, since it is larger than the sum of its proper divisors (1660301).

4980891 is a wasteful number, since it uses less digits than its factorization.

4980891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660300.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 4980891 is about 2231.7909848371. The cubic root of 4980891 is about 170.7794770281.

The spelling of 4980891 in words is "four million, nine hundred eighty thousand, eight hundred ninety-one".