27954742 has 4 divisors (see below), whose sum is σ = 41932116. Its totient is φ = 13977370.

The previous prime is 27954739. The next prime is 27954761. The reversal of 27954742 is 24745972.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 27954695 and 27954704.

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, 6988684 + ... + 6988687.

It is an arithmetic number, because the mean of its divisors is an integer number (10483029).

Almost surely, 2^27954742 is an apocalyptic number.

27954742 is a deficient number, since it is larger than the sum of its proper divisors (13977374).

27954742 is a wasteful number, since it uses less digits than its factorization.

27954742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13977373.

The product of its digits is 141120, while the sum is 40.

The square root of 27954742 is about 5287.2244136220. The cubic root of 27954742 is about 303.4952018833.

The spelling of 27954742 in words is "twenty-seven million, nine hundred fifty-four thousand, seven hundred forty-two".