4890857 has 2 divisors, whose sum is σ = 4890858. Its totient is φ = 4890856.

The previous prime is 4890841. The next prime is 4890859. The reversal of 4890857 is 7580984.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3748096 + 1142761 = 1936^2 + 1069^2 .

It is a cyclic number.

It is not a de Polignac number, because 4890857 - 2⁴ = 4890841 is a prime.

Together with 4890859, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4890859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2445428 + 2445429.

It is an arithmetic number, because the mean of its divisors is an integer number (2445429).

Almost surely, 2^4890857 is an apocalyptic number.

It is an amenable number.

4890857 is a deficient number, since it is larger than the sum of its proper divisors (1).

4890857 is an equidigital number, since it uses as much as digits as its factorization.

4890857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 4890857 is about 2211.5282046585. The cubic root of 4890857 is about 169.7442174178.

The spelling of 4890857 in words is "four million, eight hundred ninety thousand, eight hundred fifty-seven".