4426447 has 4 divisors (see below), whose sum is σ = 4445056. Its totient is φ = 4407840.

The previous prime is 4426441. The next prime is 4426451. The reversal of 4426447 is 7446244.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4426447 is a prime.

It is an Ulam number.

It is a Duffinian number.

4426447 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4426441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8943 + ... + 9424.

It is an arithmetic number, because the mean of its divisors is an integer number (1111264).

Almost surely, 2^4426447 is an apocalyptic number.

4426447 is a deficient number, since it is larger than the sum of its proper divisors (18609).

4426447 is a wasteful number, since it uses less digits than its factorization.

4426447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18608.

The product of its digits is 21504, while the sum is 31.

The square root of 4426447 is about 2103.9123080585. The cubic root of 4426447 is about 164.1919104793.

It can be divided in two parts, 442 and 6447, that added together give a square (6889 = 83²).

The spelling of 4426447 in words is "four million, four hundred twenty-six thousand, four hundred forty-seven".