27974742 has 8 divisors (see below), whose sum is σ = 55949496. Its totient is φ = 9324912.

The previous prime is 27974719. The next prime is 27974743. The reversal of 27974742 is 24747972.

It is a sphenic number, since it is the product of 3 distinct primes.

27974742 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 27974694 and 27974703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27974743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2331223 + ... + 2331234.

It is an arithmetic number, because the mean of its divisors is an integer number (6993687).

Almost surely, 2^27974742 is an apocalyptic number.

27974742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

27974742 is a wasteful number, since it uses less digits than its factorization.

27974742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4662462.

The product of its digits is 197568, while the sum is 42.

The square root of 27974742 is about 5289.1154269878. The cubic root of 27974742 is about 303.5675623802.

The spelling of 27974742 in words is "twenty-seven million, nine hundred seventy-four thousand, seven hundred forty-two".