4395389 has 2 divisors, whose sum is σ = 4395390. Its totient is φ = 4395388.

The previous prime is 4395379. The next prime is 4395409. The reversal of 4395389 is 9835934.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4169764 + 225625 = 2042^2 + 475^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4395389 is a prime.

It is a super-2 number, since 2×4395389² = 38638888922642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4395329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2197694 + 2197695.

It is an arithmetic number, because the mean of its divisors is an integer number (2197695).

Almost surely, 2^4395389 is an apocalyptic number.

It is an amenable number.

4395389 is a deficient number, since it is larger than the sum of its proper divisors (1).

4395389 is an equidigital number, since it uses as much as digits as its factorization.

4395389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 41.

The square root of 4395389 is about 2096.5183042368. The cubic root of 4395389 is about 163.8069933499.

The spelling of 4395389 in words is "four million, three hundred ninety-five thousand, three hundred eighty-nine".