28682911 has 8 divisors (see below), whose sum is σ = 29346624. Its totient is φ = 28023840.

The previous prime is 28682897. The next prime is 28682917. The reversal of 28682911 is 11928682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28682911 - 2⁵ = 28682879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28682917) 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, 13365 + ... + 15361.

It is an arithmetic number, because the mean of its divisors is an integer number (3668328).

Almost surely, 2^28682911 is an apocalyptic number.

28682911 is a deficient number, since it is larger than the sum of its proper divisors (663713).

28682911 is a wasteful number, since it uses less digits than its factorization.

28682911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2321.

The product of its digits is 13824, while the sum is 37.

The square root of 28682911 is about 5355.6429119201. The cubic root of 28682911 is about 306.1078087099.

The spelling of 28682911 in words is "twenty-eight million, six hundred eighty-two thousand, nine hundred eleven".