27172666 has 8 divisors (see below), whose sum is σ = 41080320. Its totient is φ = 13479228.

The previous prime is 27172643. The next prime is 27172669. The reversal of 27172666 is 66627172.

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

It is not an unprimeable number, because it can be changed into a prime (27172669) 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, 53236 + ... + 53743.

It is an arithmetic number, because the mean of its divisors is an integer number (5135040).

Almost surely, 2^27172666 is an apocalyptic number.

27172666 is a deficient number, since it is larger than the sum of its proper divisors (13907654).

27172666 is a wasteful number, since it uses less digits than its factorization.

27172666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107108.

The product of its digits is 42336, while the sum is 37.

The square root of 27172666 is about 5212.7407378461. The cubic root of 27172666 is about 300.6381453098.

The spelling of 27172666 in words is "twenty-seven million, one hundred seventy-two thousand, six hundred sixty-six".