4394447 has 2 divisors, whose sum is σ = 4394448. Its totient is φ = 4394446.

The previous prime is 4394441. The next prime is 4394461. The reversal of 4394447 is 7444934.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4394447 - 2⁴ = 4394431 is a prime.

It is a super-2 number, since 2×4394447² = 38622328871618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4394441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2197223 + 2197224.

It is an arithmetic number, because the mean of its divisors is an integer number (2197224).

Almost surely, 2^4394447 is an apocalyptic number.

4394447 is a deficient number, since it is larger than the sum of its proper divisors (1).

4394447 is an equidigital number, since it uses as much as digits as its factorization.

4394447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 35.

The square root of 4394447 is about 2096.2936340122. The cubic root of 4394447 is about 163.7952903878.

The spelling of 4394447 in words is "four million, three hundred ninety-four thousand, four hundred forty-seven".