28806122 has 4 divisors (see below), whose sum is σ = 43209186. Its totient is φ = 14403060.

The previous prime is 28806103. The next prime is 28806131. The reversal of 28806122 is 22160882.

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., 28526281 + 279841 = 5341^2 + 529^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7201529 + ... + 7201532.

Almost surely, 2^28806122 is an apocalyptic number.

28806122 is a deficient number, since it is larger than the sum of its proper divisors (14403064).

28806122 is a wasteful number, since it uses less digits than its factorization.

28806122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14403063.

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

The square root of 28806122 is about 5367.1334993644. The cubic root of 28806122 is about 306.5454906147.

The spelling of 28806122 in words is "twenty-eight million, eight hundred six thousand, one hundred twenty-two".