28827320 has 16 divisors (see below), whose sum is σ = 64861560. Its totient is φ = 11530912.

The previous prime is 28827307. The next prime is 28827347. The reversal of 28827320 is 2372882.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360302 + ... + 360381.

Almost surely, 2^28827320 is an apocalyptic number.

28827320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28827320 is an abundant number, since it is smaller than the sum of its proper divisors (36034240).

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

28827320 is a wasteful number, since it uses less digits than its factorization.

28827320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720694 (or 720690 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 28827320 is about 5369.1079333535. The cubic root of 28827320 is about 306.6206662781.

The spelling of 28827320 in words is "twenty-eight million, eight hundred twenty-seven thousand, three hundred twenty".