4857091 has 2 divisors, whose sum is σ = 4857092. Its totient is φ = 4857090.

The previous prime is 4857089. The next prime is 4857113. The reversal of 4857091 is 1907584.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4857091 - 2¹ = 4857089 is a prime.

Together with 4857089, it forms a pair of twin primes.

4857091 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (4857691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2428545 + 2428546.

It is an arithmetic number, because the mean of its divisors is an integer number (2428546).

Almost surely, 2^4857091 is an apocalyptic number.

4857091 is a deficient number, since it is larger than the sum of its proper divisors (1).

4857091 is an equidigital number, since it uses as much as digits as its factorization.

4857091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 4857091 is about 2203.8808951484. The cubic root of 4857091 is about 169.3526824804.

The spelling of 4857091 in words is "four million, eight hundred fifty-seven thousand, ninety-one".