28922910 has 16 divisors (see below), whose sum is σ = 69415056. Its totient is φ = 7712768.

The previous prime is 28922879. The next prime is 28922911. The reversal of 28922910 is 1922982.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28922911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482019 + ... + 482078.

It is an arithmetic number, because the mean of its divisors is an integer number (4338441).

Almost surely, 2^28922910 is an apocalyptic number.

28922910 is an abundant number, since it is smaller than the sum of its proper divisors (40492146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28922910 is a wasteful number, since it uses less digits than its factorization.

28922910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964107.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 28922910 is about 5378.0024172549. The cubic root of 28922910 is about 306.9592054641.

The spelling of 28922910 in words is "twenty-eight million, nine hundred twenty-two thousand, nine hundred ten".