4556891 has 2 divisors, whose sum is σ = 4556892. Its totient is φ = 4556890.

The previous prime is 4556873. The next prime is 4556897. The reversal of 4556891 is 1986554.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4556891 - 2¹⁰ = 4555867 is a prime.

It is not a weakly prime, because it can be changed into another prime (4556897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2278445 + 2278446.

It is an arithmetic number, because the mean of its divisors is an integer number (2278446).

Almost surely, 2^4556891 is an apocalyptic number.

4556891 is a deficient number, since it is larger than the sum of its proper divisors (1).

4556891 is an equidigital number, since it uses as much as digits as its factorization.

4556891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 38.

The square root of 4556891 is about 2134.6875649612. The cubic root of 4556891 is about 165.7891914420.

The spelling of 4556891 in words is "four million, five hundred fifty-six thousand, eight hundred ninety-one".