27904342 has 4 divisors (see below), whose sum is σ = 41856516. Its totient is φ = 13952170.

The previous prime is 27904321. The next prime is 27904343. The reversal of 27904342 is 24340972.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27904343) by changing a digit.

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, 6976084 + ... + 6976087.

It is an arithmetic number, because the mean of its divisors is an integer number (10464129).

Almost surely, 2^27904342 is an apocalyptic number.

27904342 is a deficient number, since it is larger than the sum of its proper divisors (13952174).

27904342 is a wasteful number, since it uses less digits than its factorization.

27904342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13952173.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 27904342 is about 5282.4560575550. The cubic root of 27904342 is about 303.3127002295.

The spelling of 27904342 in words is "twenty-seven million, nine hundred four thousand, three hundred forty-two".