27880022 has 4 divisors (see below), whose sum is σ = 41820036. Its totient is φ = 13940010.

The previous prime is 27880003. The next prime is 27880033. The reversal of 27880022 is 22008872.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 6970004 + ... + 6970007.

It is an arithmetic number, because the mean of its divisors is an integer number (10455009).

Almost surely, 2^27880022 is an apocalyptic number.

27880022 is a deficient number, since it is larger than the sum of its proper divisors (13940014).

27880022 is a wasteful number, since it uses less digits than its factorization.

27880022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13940013.

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 27880022 is about 5280.1535962508. The cubic root of 27880022 is about 303.2245573290.

Adding to 27880022 its reverse (22008872), we get a palindrome (49888894).

The spelling of 27880022 in words is "twenty-seven million, eight hundred eighty thousand, twenty-two".