28806106 has 16 divisors (see below), whose sum is σ = 51085440. Its totient is φ = 11919600.

The previous prime is 28806103. The next prime is 28806131. The reversal of 28806106 is 60160882.

28806106 = T₄₂₈ + T₄₂₉ + ... + T₆₃₀.

It is not an unprimeable number, because it can be changed into a prime (28806103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35070 + ... + 35881.

It is an arithmetic number, because the mean of its divisors is an integer number (3192840).

Almost surely, 2^28806106 is an apocalyptic number.

28806106 is a deficient number, since it is larger than the sum of its proper divisors (22279334).

28806106 is a wasteful number, since it uses less digits than its factorization.

28806106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70989.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 28806106 is about 5367.1320088107. The cubic root of 28806106 is about 306.5454338591.

Adding to 28806106 its reverse (60160882), we get a palindrome (88966988).

The spelling of 28806106 in words is "twenty-eight million, eight hundred six thousand, one hundred six".