4388869 has 2 divisors, whose sum is σ = 4388870. Its totient is φ = 4388868.

The previous prime is 4388861. The next prime is 4388897. The reversal of 4388869 is 9688834.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3560769 + 828100 = 1887^2 + 910^2 .

It is a cyclic number.

It is not a de Polignac number, because 4388869 - 2³ = 4388861 is a prime.

It is a super-2 number, since 2×4388869² = 38524342198322, which contains 22 as substring.

It is a Chen prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4388861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2194434 + 2194435.

It is an arithmetic number, because the mean of its divisors is an integer number (2194435).

Almost surely, 2^4388869 is an apocalyptic number.

It is an amenable number.

4388869 is a deficient number, since it is larger than the sum of its proper divisors (1).

4388869 is an equidigital number, since it uses as much as digits as its factorization.

4388869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 331776, while the sum is 46.

The square root of 4388869 is about 2094.9627681656. The cubic root of 4388869 is about 163.7259576613.

The spelling of 4388869 in words is "four million, three hundred eighty-eight thousand, eight hundred sixty-nine".