4857691 has 2 divisors, whose sum is σ = 4857692. Its totient is φ = 4857690.

The previous prime is 4857683. The next prime is 4857707. The reversal of 4857691 is 1967584.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4857691 - 2³ = 4857683 is a prime.

It is not a weakly prime, because it can be changed into another prime (4857091) 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 as a sum of consecutive naturals, namely, 2428845 + 2428846.

It is an arithmetic number, because the mean of its divisors is an integer number (2428846).

Almost surely, 2^4857691 is an apocalyptic number.

4857691 is a deficient number, since it is larger than the sum of its proper divisors (1).

4857691 is an equidigital number, since it uses as much as digits as its factorization.

4857691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 40.

The square root of 4857691 is about 2204.0170144534. The cubic root of 4857691 is about 169.3596556135.

The spelling of 4857691 in words is "four million, eight hundred fifty-seven thousand, six hundred ninety-one".