27166642 has 4 divisors (see below), whose sum is σ = 40749966. Its totient is φ = 13583320.

The previous prime is 27166639. The next prime is 27166661. The reversal of 27166642 is 24666172.

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

It can be written as a sum of positive squares in only one way, i.e., 14055001 + 13111641 = 3749^2 + 3621^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27166598 and 27166607.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6791659 + ... + 6791662.

Almost surely, 2^27166642 is an apocalyptic number.

27166642 is a deficient number, since it is larger than the sum of its proper divisors (13583324).

27166642 is a wasteful number, since it uses less digits than its factorization.

27166642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13583323.

The product of its digits is 24192, while the sum is 34.

The square root of 27166642 is about 5212.1628907777. The cubic root of 27166642 is about 300.6159271729.

The spelling of 27166642 in words is "twenty-seven million, one hundred sixty-six thousand, six hundred forty-two".