4447881 has 27 divisors (see below), whose sum is σ = 6968871. Its totient is φ = 2733264.

The previous prime is 4447879. The next prime is 4447889. The reversal of 4447881 is 1887444.

It is a happy number.

The square root of 4447881 is 2109.

It is a perfect power (a square), and thus also a powerful number.

4447881 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3980025 + 467856 = 1995^2 + 684^2 .

It is not a de Polignac number, because 4447881 - 2¹ = 4447879 is a prime.

It is a super-2 number, since 2×4447881² = 39567290780322, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4447889) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 120195 + ... + 120231.

Almost surely, 2^4447881 is an apocalyptic number.

4447881 is the 2109-th square number.

4447881 is the 1055-th centered octagonal number.

It is an amenable number.

4447881 is a deficient number, since it is larger than the sum of its proper divisors (2520990).

4447881 is a wasteful number, since it uses less digits than its factorization.

4447881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 59 counting only the distinct ones).

The product of its digits is 28672, while the sum is 36.

The cubic root of 4447881 is about 164.4565037453.

Multiplying 4447881 by its sum of digits (36), we get a square (160123716 = 12654²).

The spelling of 4447881 in words is "four million, four hundred forty-seven thousand, eight hundred eighty-one".