4267891 has 2 divisors, whose sum is σ = 4267892. Its totient is φ = 4267890.

The previous prime is 4267889. The next prime is 4267927. The reversal of 4267891 is 1987624.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4267891 - 2¹ = 4267889 is a prime.

Together with 4267889, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 4267891.

It is not a weakly prime, because it can be changed into another prime (4267831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2133945 + 2133946.

It is an arithmetic number, because the mean of its divisors is an integer number (2133946).

Almost surely, 2^4267891 is an apocalyptic number.

4267891 is a deficient number, since it is larger than the sum of its proper divisors (1).

4267891 is an equidigital number, since it uses as much as digits as its factorization.

4267891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 37.

The square root of 4267891 is about 2065.8874606328. The cubic root of 4267891 is about 162.2075655705.

The spelling of 4267891 in words is "four million, two hundred sixty-seven thousand, eight hundred ninety-one".