28922205 has 32 divisors (see below), whose sum is σ = 50561280. Its totient is φ = 14031360.

The previous prime is 28922203. The next prime is 28922209. The reversal of 28922205 is 50222982.

It is not a de Polignac number, because 28922205 - 2¹ = 28922203 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28922203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12801 + ... + 14889.

It is an arithmetic number, because the mean of its divisors is an integer number (1580040).

Almost surely, 2^28922205 is an apocalyptic number.

It is an amenable number.

28922205 is a deficient number, since it is larger than the sum of its proper divisors (21639075).

28922205 is a wasteful number, since it uses less digits than its factorization.

28922205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2181.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 28922205 is about 5377.9368720728. The cubic root of 28922205 is about 306.9567113859.

The spelling of 28922205 in words is "twenty-eight million, nine hundred twenty-two thousand, two hundred five".