4843991 has 2 divisors, whose sum is σ = 4843992. Its totient is φ = 4843990.

The previous prime is 4843981. The next prime is 4844017. The reversal of 4843991 is 1993484.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4843991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4843981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2421995 + 2421996.

It is an arithmetic number, because the mean of its divisors is an integer number (2421996).

Almost surely, 2^4843991 is an apocalyptic number.

4843991 is a deficient number, since it is larger than the sum of its proper divisors (1).

4843991 is an equidigital number, since it uses as much as digits as its factorization.

4843991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 38.

The square root of 4843991 is about 2200.9068585472. The cubic root of 4843991 is about 169.2002923874.

The spelling of 4843991 in words is "four million, eight hundred forty-three thousand, nine hundred ninety-one".