27974622 has 64 divisors (see below), whose sum is σ = 64895040. Its totient is φ = 7990272.

The previous prime is 27974603. The next prime is 27974629. The reversal of 27974622 is 22647972.

It is a Harshad number since it is a multiple of its sum of digits (39).

Its product of digits (84672) is a multiple of the sum of its prime divisors (108).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27974629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 383178 + ... + 383250.

It is an arithmetic number, because the mean of its divisors is an integer number (1013985).

Almost surely, 2^27974622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27974622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32447520).

27974622 is an abundant number, since it is smaller than the sum of its proper divisors (36920418).

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

27974622 is a wasteful number, since it uses less digits than its factorization.

27974622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 108 counting only the distinct ones).

The product of its digits is 84672, while the sum is 39.

The square root of 27974622 is about 5289.1040829237. The cubic root of 27974622 is about 303.5671283200.

The spelling of 27974622 in words is "twenty-seven million, nine hundred seventy-four thousand, six hundred twenty-two".