28803828 has 24 divisors (see below), whose sum is σ = 67331488. Its totient is φ = 9583776.

The previous prime is 28803823. The next prime is 28803833. The reversal of 28803828 is 82830882.

It is an interprime number because it is at equal distance from previous prime (28803823) and next prime (28803833).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28803823) 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, 5850 + ... + 9582.

Almost surely, 2^28803828 is an apocalyptic number.

It is an amenable number.

28803828 is an abundant number, since it is smaller than the sum of its proper divisors (38527660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28803828 is a wasteful number, since it uses less digits than its factorization.

28803828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4383 (or 4381 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 39.

The square root of 28803828 is about 5366.9197869914. The cubic root of 28803828 is about 306.5373530618.

The spelling of 28803828 in words is "twenty-eight million, eight hundred three thousand, eight hundred twenty-eight".