4854991 has 4 divisors (see below), whose sum is σ = 4892184. Its totient is φ = 4817800.

The previous prime is 4854989. The next prime is 4855007. The reversal of 4854991 is 1994584.

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 4854991 - 2¹ = 4854989 is a prime.

It is a super-2 number, since 2×4854991² = 47141875220162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4854931) 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, 18400 + ... + 18661.

It is an arithmetic number, because the mean of its divisors is an integer number (1223046).

Almost surely, 2^4854991 is an apocalyptic number.

4854991 is a deficient number, since it is larger than the sum of its proper divisors (37193).

4854991 is a wasteful number, since it uses less digits than its factorization.

4854991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37192.

The product of its digits is 51840, while the sum is 40.

The square root of 4854991 is about 2203.4044113598. The cubic root of 4854991 is about 169.3282719914.

It can be divided in two parts, 485 and 4991, that added together give a square (5476 = 74²).

The spelling of 4854991 in words is "four million, eight hundred fifty-four thousand, nine hundred ninety-one".