27970646 has 8 divisors (see below), whose sum is σ = 45770184. Its totient is φ = 12713920.

The previous prime is 27970643. The next prime is 27970669. The reversal of 27970646 is 64607972.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27970643) 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 in 3 ways as a sum of consecutive naturals, for example, 635675 + ... + 635718.

It is an arithmetic number, because the mean of its divisors is an integer number (5721273).

Almost surely, 2^27970646 is an apocalyptic number.

27970646 is a deficient number, since it is larger than the sum of its proper divisors (17799538).

27970646 is a wasteful number, since it uses less digits than its factorization.

27970646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271406.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 27970646 is about 5288.7282025077. The cubic root of 27970646 is about 303.5527457594.

The spelling of 27970646 in words is "twenty-seven million, nine hundred seventy thousand, six hundred forty-six".