28085967 has 96 divisors (see below), whose sum is σ = 55157760. Its totient is φ = 13970880.

The previous prime is 28085963. The next prime is 28085987. The reversal of 28085967 is 76958082.

It is not a de Polignac number, because 28085967 - 2² = 28085963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28085963) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 395542 + ... + 395612.

It is an arithmetic number, because the mean of its divisors is an integer number (574560).

Almost surely, 2^28085967 is an apocalyptic number.

28085967 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

28085967 is a deficient number, since it is larger than the sum of its proper divisors (27071793).

28085967 is a wasteful number, since it uses less digits than its factorization.

28085967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 28085967 is about 5299.6195146444. The cubic root of 28085967 is about 303.9693492585.

The spelling of 28085967 in words is "twenty-eight million, eighty-five thousand, nine hundred sixty-seven".