27798622 has 4 divisors (see below), whose sum is σ = 41697936. Its totient is φ = 13899310.

The previous prime is 27798613. The next prime is 27798623. The reversal of 27798622 is 22689772.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27798623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6949654 + ... + 6949657.

It is an arithmetic number, because the mean of its divisors is an integer number (10424484).

Almost surely, 2^27798622 is an apocalyptic number.

27798622 is a deficient number, since it is larger than the sum of its proper divisors (13899314).

27798622 is a wasteful number, since it uses less digits than its factorization.

27798622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13899313.

The product of its digits is 169344, while the sum is 43.

The square root of 27798622 is about 5272.4398526678. The cubic root of 27798622 is about 302.9291661293.

The spelling of 27798622 in words is "twenty-seven million, seven hundred ninety-eight thousand, six hundred twenty-two".