28836004 has 24 divisors (see below), whose sum is σ = 51907968. Its totient is φ = 14009760.

The previous prime is 28835971. The next prime is 28836007. The reversal of 28836004 is 40063882.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28836007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30174 + ... + 31114.

It is an arithmetic number, because the mean of its divisors is an integer number (2162832).

Almost surely, 2^28836004 is an apocalyptic number.

It is an amenable number.

28836004 is a deficient number, since it is larger than the sum of its proper divisors (23071964).

28836004 is a wasteful number, since it uses less digits than its factorization.

28836004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155 (or 1153 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 28836004 is about 5369.9165729087. The cubic root of 28836004 is about 306.6514521962.

Adding to 28836004 its reverse (40063882), we get a palindrome (68899886).

The spelling of 28836004 in words is "twenty-eight million, eight hundred thirty-six thousand, four".