8936389 has 16 divisors (see below), whose sum is σ = 11404800. Its totient is φ = 6798960.

The previous prime is 8936387. The next prime is 8936399. The reversal of 8936389 is 9836398.

It is not a de Polignac number, because 8936389 - 2¹ = 8936387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8936387) 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 in 15 ways as a sum of consecutive naturals, for example, 1962 + ... + 4660.

It is an arithmetic number, because the mean of its divisors is an integer number (712800).

Almost surely, 2^8936389 is an apocalyptic number.

It is an amenable number.

8936389 is a deficient number, since it is larger than the sum of its proper divisors (2468411).

8936389 is a wasteful number, since it uses less digits than its factorization.

8936389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2760.

The product of its digits is 279936, while the sum is 46.

The square root of 8936389 is about 2989.3793670259. The cubic root of 8936389 is about 207.5171631422.

Subtracting 8936389 from its reverse (9836398), we obtain a palindrome (900009).

The spelling of 8936389 in words is "eight million, nine hundred thirty-six thousand, three hundred eighty-nine".