9026389 has 4 divisors (see below), whose sum is σ = 9034924. Its totient is φ = 9017856.

The previous prime is 9026359. The next prime is 9026429. The reversal of 9026389 is 9836209.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4986289 + 4040100 = 2233^2 + 2010^2 .

It is a cyclic number.

It is not a de Polignac number, because 9026389 - 2⁵ = 9026357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9026309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2412 + ... + 4885.

It is an arithmetic number, because the mean of its divisors is an integer number (2258731).

Almost surely, 2^9026389 is an apocalyptic number.

It is an amenable number.

9026389 is a deficient number, since it is larger than the sum of its proper divisors (8535).

9026389 is a wasteful number, since it uses less digits than its factorization.

9026389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8534.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 9026389 is about 3004.3949474062. The cubic root of 9026389 is about 208.2114851573.

The spelling of 9026389 in words is "nine million, twenty-six thousand, three hundred eighty-nine".