28086122 has 4 divisors (see below), whose sum is σ = 42129186. Its totient is φ = 14043060.

The previous prime is 28086103. The next prime is 28086127. The reversal of 28086122 is 22168082.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 27762361 + 323761 = 5269^2 + 569^2 .

It is not an unprimeable number, because it can be changed into a prime (28086127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7021529 + ... + 7021532.

Almost surely, 2^28086122 is an apocalyptic number.

28086122 is a deficient number, since it is larger than the sum of its proper divisors (14043064).

28086122 is a wasteful number, since it uses less digits than its factorization.

28086122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14043063.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 28086122 is about 5299.6341383156. The cubic root of 28086122 is about 303.9699084365.

The spelling of 28086122 in words is "twenty-eight million, eighty-six thousand, one hundred twenty-two".