27672945 has 8 divisors (see below), whose sum is σ = 44276736. Its totient is φ = 14758896.

The previous prime is 27672917. The next prime is 27672959. The reversal of 27672945 is 54927672.

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

It is not a de Polignac number, because 27672945 - 2⁷ = 27672817 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 27672897 and 27672906.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 922417 + ... + 922446.

It is an arithmetic number, because the mean of its divisors is an integer number (5534592).

Almost surely, 2^27672945 is an apocalyptic number.

It is an amenable number.

27672945 is a deficient number, since it is larger than the sum of its proper divisors (16603791).

27672945 is a wasteful number, since it uses less digits than its factorization.

27672945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1844871.

The product of its digits is 211680, while the sum is 42.

The square root of 27672945 is about 5260.5080553118. The cubic root of 27672945 is about 302.4719642528.

The spelling of 27672945 in words is "twenty-seven million, six hundred seventy-two thousand, nine hundred forty-five".