4270891 has 2 divisors, whose sum is σ = 4270892. Its totient is φ = 4270890.

The previous prime is 4270879. The next prime is 4270907. The reversal of 4270891 is 1980724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4270891 - 2¹¹ = 4268843 is a prime.

It is not a weakly prime, because it can be changed into another prime (4270811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2135445 + 2135446.

It is an arithmetic number, because the mean of its divisors is an integer number (2135446).

Almost surely, 2^4270891 is an apocalyptic number.

4270891 is a deficient number, since it is larger than the sum of its proper divisors (1).

4270891 is an equidigital number, since it uses as much as digits as its factorization.

4270891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 4270891 is about 2066.6134132924. The cubic root of 4270891 is about 162.2455631608.

The spelling of 4270891 in words is "four million, two hundred seventy thousand, eight hundred ninety-one".