28995111 has 16 divisors (see below), whose sum is σ = 44824320. Its totient is φ = 18489240.

The previous prime is 28995097. The next prime is 28995119. The reversal of 28995111 is 11159982.

It is not a de Polignac number, because 28995111 - 2⁵ = 28995079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28995119) 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, 22725 + ... + 23966.

It is an arithmetic number, because the mean of its divisors is an integer number (2801520).

Almost surely, 2^28995111 is an apocalyptic number.

28995111 is a deficient number, since it is larger than the sum of its proper divisors (15829209).

28995111 is a wasteful number, since it uses less digits than its factorization.

28995111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46723 (or 46717 counting only the distinct ones).

The product of its digits is 6480, while the sum is 36.

The square root of 28995111 is about 5384.7108557470. The cubic root of 28995111 is about 307.2144165903.

The spelling of 28995111 in words is "twenty-eight million, nine hundred ninety-five thousand, one hundred eleven".