28782927 has 12 divisors (see below), whose sum is σ = 41894424. Its totient is φ = 19041360.

The previous prime is 28782917. The next prime is 28782947. The reversal of 28782927 is 72928782.

It is a happy number.

It is not a de Polignac number, because 28782927 - 2⁶ = 28782863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28782917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11028 + ... + 13385.

It is an arithmetic number, because the mean of its divisors is an integer number (3491202).

Almost surely, 2^28782927 is an apocalyptic number.

28782927 is a deficient number, since it is larger than the sum of its proper divisors (13111497).

28782927 is a wasteful number, since it uses less digits than its factorization.

28782927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24550 (or 24547 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 28782927 is about 5364.9722273279. The cubic root of 28782927 is about 306.4631906098.

The spelling of 28782927 in words is "twenty-eight million, seven hundred eighty-two thousand, nine hundred twenty-seven".