9004431 has 16 divisors (see below), whose sum is σ = 12870144. Its totient is φ = 5585184.

The previous prime is 9004399. The next prime is 9004451. The reversal of 9004431 is 1344009.

9004431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9004431 - 2⁵ = 9004399 is a prime.

It is a super-2 number, since 2×9004431² = 162159555267522, which contains 22 as substring.

9004431 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 9004398 and 9004407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9004451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 790 + ... + 4316.

It is an arithmetic number, because the mean of its divisors is an integer number (804384).

Almost surely, 2^9004431 is an apocalyptic number.

9004431 is a deficient number, since it is larger than the sum of its proper divisors (3865713).

9004431 is a wasteful number, since it uses less digits than its factorization.

9004431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3590.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 9004431 is about 3000.7384091253. The cubic root of 9004431 is about 208.0425131913.

The spelling of 9004431 in words is "nine million, four thousand, four hundred thirty-one".