4279891 has 24 divisors (see below), whose sum is σ = 5583872. Its totient is φ = 3207600.

The previous prime is 4279889. The next prime is 4279897. The reversal of 4279891 is 1989724.

It is not a de Polignac number, because 4279891 - 2¹ = 4279889 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4279897) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26176 + ... + 26338.

Almost surely, 2^4279891 is an apocalyptic number.

4279891 is a deficient number, since it is larger than the sum of its proper divisors (1303981).

4279891 is a wasteful number, since it uses less digits than its factorization.

4279891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 212 counting only the distinct ones).

The product of its digits is 36288, while the sum is 40.

The square root of 4279891 is about 2068.7897428207. The cubic root of 4279891 is about 162.3594492775.

The spelling of 4279891 in words is "four million, two hundred seventy-nine thousand, eight hundred ninety-one".