28086045 has 16 divisors (see below), whose sum is σ = 48394752. Its totient is φ = 13826880.

The previous prime is 28086017. The next prime is 28086049. The reversal of 28086045 is 54068082.

It is not a de Polignac number, because 28086045 - 2¹³ = 28077853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28085997 and 28086015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28086049) 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, 71821 + ... + 72210.

It is an arithmetic number, because the mean of its divisors is an integer number (3024672).

Almost surely, 2^28086045 is an apocalyptic number.

It is an amenable number.

28086045 is a deficient number, since it is larger than the sum of its proper divisors (20308707).

28086045 is a wasteful number, since it uses less digits than its factorization.

28086045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144052.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 28086045 is about 5299.6268736582. The cubic root of 28086045 is about 303.9696306516.

The spelling of 28086045 in words is "twenty-eight million, eighty-six thousand, forty-five".