4385389 has 2 divisors, whose sum is σ = 4385390. Its totient is φ = 4385388.

The previous prime is 4385357. The next prime is 4385393. The reversal of 4385389 is 9835834.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4284900 + 100489 = 2070^2 + 317^2 .

It is a cyclic number.

It is not a de Polignac number, because 4385389 - 2⁵ = 4385357 is a prime.

It is a Chen prime.

4385389 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4385399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2192694 + 2192695.

It is an arithmetic number, because the mean of its divisors is an integer number (2192695).

Almost surely, 2^4385389 is an apocalyptic number.

It is an amenable number.

4385389 is a deficient number, since it is larger than the sum of its proper divisors (1).

4385389 is an equidigital number, since it uses as much as digits as its factorization.

4385389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 40.

The square root of 4385389 is about 2094.1320397721. The cubic root of 4385389 is about 163.6826726303.

It can be divided in two parts, 4385 and 389, that added together give a palindrome (4774).

The spelling of 4385389 in words is "four million, three hundred eighty-five thousand, three hundred eighty-nine".