28086245 has 16 divisors (see below), whose sum is σ = 36929088. Its totient is φ = 20336640.

The previous prime is 28086241. The next prime is 28086257. The reversal of 28086245 is 54268082.

It is not a de Polignac number, because 28086245 - 2² = 28086241 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 (28086241) 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, 13142 + ... + 15128.

It is an arithmetic number, because the mean of its divisors is an integer number (2308068).

Almost surely, 2^28086245 is an apocalyptic number.

It is an amenable number.

28086245 is a deficient number, since it is larger than the sum of its proper divisors (8842843).

28086245 is a wasteful number, since it uses less digits than its factorization.

28086245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260.

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 28086245 is about 5299.6457428775. The cubic root of 28086245 is about 303.9703521698.

The spelling of 28086245 in words is "twenty-eight million, eighty-six thousand, two hundred forty-five".