4391856 has 60 divisors (see below), whose sum is σ = 14050192. Its totient is φ = 1254528.

The previous prime is 4391851. The next prime is 4391857. The reversal of 4391856 is 6581934.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 4391856.

It is not an unprimeable number, because it can be changed into a prime (4391851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1171 + ... + 3186.

Almost surely, 2^4391856 is an apocalyptic number.

It is an amenable number.

4391856 is an abundant number, since it is smaller than the sum of its proper divisors (9658336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4391856 is a wasteful number, since it uses less digits than its factorization.

4391856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4378 (or 4369 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 4391856 is about 2095.6755474071. The cubic root of 4391856 is about 163.7630924015.

The spelling of 4391856 in words is "four million, three hundred ninety-one thousand, eight hundred fifty-six".