4858991 has 4 divisors (see below), whose sum is σ = 5144832. Its totient is φ = 4573152.

The previous prime is 4858981. The next prime is 4859017. The reversal of 4858991 is 1998584.

4858991 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 4858991 - 2¹⁸ = 4596847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4858901) 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, 142895 + ... + 142928.

It is an arithmetic number, because the mean of its divisors is an integer number (1286208).

Almost surely, 2^4858991 is an apocalyptic number.

4858991 is a deficient number, since it is larger than the sum of its proper divisors (285841).

4858991 is a wasteful number, since it uses less digits than its factorization.

4858991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285840.

The product of its digits is 103680, while the sum is 44.

The square root of 4858991 is about 2204.3119107785. The cubic root of 4858991 is about 169.3747620989.

The spelling of 4858991 in words is "four million, eight hundred fifty-eight thousand, nine hundred ninety-one".