27822798 has 16 divisors (see below), whose sum is σ = 61828560. Its totient is φ = 9274248.

The previous prime is 27822793. The next prime is 27822799. The reversal of 27822798 is 89722872.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27822791) 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, 257565 + ... + 257672.

It is an arithmetic number, because the mean of its divisors is an integer number (3864285).

Almost surely, 2^27822798 is an apocalyptic number.

27822798 is an abundant number, since it is smaller than the sum of its proper divisors (34005762).

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

27822798 is a wasteful number, since it uses less digits than its factorization.

27822798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515248 (or 515242 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 27822798 is about 5274.7320311083. The cubic root of 27822798 is about 303.0169581725.

The spelling of 27822798 in words is "twenty-seven million, eight hundred twenty-two thousand, seven hundred ninety-eight".