28090106 has 16 divisors (see below), whose sum is σ = 46834848. Its totient is φ = 12526800.

The previous prime is 28090099. The next prime is 28090121. The reversal of 28090106 is 60109082.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10880 + ... + 13211.

It is an arithmetic number, because the mean of its divisors is an integer number (2927178).

Almost surely, 2^28090106 is an apocalyptic number.

28090106 is a deficient number, since it is larger than the sum of its proper divisors (18744742).

28090106 is a wasteful number, since it uses less digits than its factorization.

28090106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24157.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 28090106 is about 5300.0099999906. The cubic root of 28090106 is about 303.9842804083.

Adding to 28090106 its reverse (60109082), we get a palindrome (88199188).

The spelling of 28090106 in words is "twenty-eight million, ninety thousand, one hundred six".