4399397 has 2 divisors, whose sum is σ = 4399398. Its totient is φ = 4399396.

The previous prime is 4399363. The next prime is 4399399. The reversal of 4399397 is 7939934.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2328676 + 2070721 = 1526^2 + 1439^2 .

It is a cyclic number.

It is not a de Polignac number, because 4399397 - 2⁶ = 4399333 is a prime.

Together with 4399399, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4399399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2199698 + 2199699.

It is an arithmetic number, because the mean of its divisors is an integer number (2199699).

Almost surely, 2^4399397 is an apocalyptic number.

It is an amenable number.

4399397 is a deficient number, since it is larger than the sum of its proper divisors (1).

4399397 is an equidigital number, since it uses as much as digits as its factorization.

4399397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 183708, while the sum is 44.

The square root of 4399397 is about 2097.4739569301. The cubic root of 4399397 is about 163.8567681611.

The spelling of 4399397 in words is "four million, three hundred ninety-nine thousand, three hundred ninety-seven".