28886011 has 16 divisors (see below), whose sum is σ = 36990720. Its totient is φ = 21898080.

The previous prime is 28886003. The next prime is 28886057. The reversal of 28886011 is 11068882.

It is not a de Polignac number, because 28886011 - 2³ = 28886003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28886071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2221 + ... + 7918.

It is an arithmetic number, because the mean of its divisors is an integer number (2311920).

Almost surely, 2^28886011 is an apocalyptic number.

28886011 is a deficient number, since it is larger than the sum of its proper divisors (8104709).

28886011 is a wasteful number, since it uses less digits than its factorization.

28886011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10194.

The product of its (nonzero) digits is 6144, while the sum is 34.

The square root of 28886011 is about 5374.5707735595. The cubic root of 28886011 is about 306.8286133970.

The spelling of 28886011 in words is "twenty-eight million, eight hundred eighty-six thousand, eleven".