28892804 has 6 divisors (see below), whose sum is σ = 50562414. Its totient is φ = 14446400.

The previous prime is 28892803. The next prime is 28892869. The reversal of 28892804 is 40829882.

It can be written as a sum of positive squares in only one way, i.e., 27457600 + 1435204 = 5240^2 + 1198^2 .

It is not an unprimeable number, because it can be changed into a prime (28892803) 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 as a sum of consecutive naturals, namely, 3611597 + ... + 3611604.

It is an arithmetic number, because the mean of its divisors is an integer number (8427069).

Almost surely, 2^28892804 is an apocalyptic number.

It is an amenable number.

28892804 is a deficient number, since it is larger than the sum of its proper divisors (21669610).

28892804 is a wasteful number, since it uses less digits than its factorization.

28892804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7223205 (or 7223203 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 28892804 is about 5375.2026938526. The cubic root of 28892804 is about 306.8526633706.

The spelling of 28892804 in words is "twenty-eight million, eight hundred ninety-two thousand, eight hundred four".