28914822 has 12 divisors (see below), whose sum is σ = 62648820. Its totient is φ = 9638268.

The previous prime is 28914811. The next prime is 28914857. The reversal of 28914822 is 22841982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 803172 + ... + 803207.

It is an arithmetic number, because the mean of its divisors is an integer number (5220735).

Almost surely, 2^28914822 is an apocalyptic number.

28914822 is an abundant number, since it is smaller than the sum of its proper divisors (33733998).

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

28914822 is a wasteful number, since it uses less digits than its factorization.

28914822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606387 (or 1606384 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 28914822 is about 5377.2504126180. The cubic root of 28914822 is about 306.9305901148.

The spelling of 28914822 in words is "twenty-eight million, nine hundred fourteen thousand, eight hundred twenty-two".