4872991 has 4 divisors (see below), whose sum is σ = 4884112. Its totient is φ = 4861872.

The previous prime is 4872961. The next prime is 4873019. The reversal of 4872991 is 1992784.

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

It is a cyclic number.

It is not a de Polignac number, because 4872991 - 2⁹ = 4872479 is a prime.

It is an Ulam number.

It is a Duffinian number.

4872991 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4872961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4875 + ... + 5788.

It is an arithmetic number, because the mean of its divisors is an integer number (1221028).

Almost surely, 2^4872991 is an apocalyptic number.

4872991 is a deficient number, since it is larger than the sum of its proper divisors (11121).

4872991 is a wasteful number, since it uses less digits than its factorization.

4872991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11120.

The product of its digits is 36288, while the sum is 40.

The square root of 4872991 is about 2207.4852207886. The cubic root of 4872991 is about 169.5372768349.

The spelling of 4872991 in words is "four million, eight hundred seventy-two thousand, nine hundred ninety-one".