28002936 has 32 divisors (see below), whose sum is σ = 75393360. Its totient is φ = 8616192.

The previous prime is 28002907. The next prime is 28002971. The reversal of 28002936 is 63920082.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 44565 + ... + 45188.

Almost surely, 2^28002936 is an apocalyptic number.

28002936 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28002936 is an abundant number, since it is smaller than the sum of its proper divisors (47390424).

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

28002936 is a wasteful number, since it uses less digits than its factorization.

28002936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89775 (or 89771 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 28002936 is about 5291.7800407802. The cubic root of 28002936 is about 303.6695104181.

The spelling of 28002936 in words is "twenty-eight million, two thousand, nine hundred thirty-six".