4567891 has 2 divisors, whose sum is σ = 4567892. Its totient is φ = 4567890.

The previous prime is 4567873. The next prime is 4567907. The reversal of 4567891 is 1987654.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4567891 - 2⁷ = 4567763 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (4567831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2283945 + 2283946.

It is an arithmetic number, because the mean of its divisors is an integer number (2283946).

Almost surely, 2^4567891 is an apocalyptic number.

4567891 is a deficient number, since it is larger than the sum of its proper divisors (1).

4567891 is an equidigital number, since it uses as much as digits as its factorization.

4567891 is an evil number, because the sum of its binary digits is even.

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

The square root of 4567891 is about 2137.2625014256. The cubic root of 4567891 is about 165.9224852205.

The spelling of 4567891 in words is "four million, five hundred sixty-seven thousand, eight hundred ninety-one".