27970671 has 4 divisors (see below), whose sum is σ = 37294232. Its totient is φ = 18647112.

The previous prime is 27970669. The next prime is 27970673. The reversal of 27970671 is 17607972.

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

It is an interprime number because it is at equal distance from previous prime (27970669) and next prime (27970673).

It is not a de Polignac number, because 27970671 - 2¹ = 27970669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27970673) 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, 4661776 + ... + 4661781.

It is an arithmetic number, because the mean of its divisors is an integer number (9323558).

Almost surely, 2^27970671 is an apocalyptic number.

27970671 is a deficient number, since it is larger than the sum of its proper divisors (9323561).

27970671 is an equidigital number, since it uses as much as digits as its factorization.

27970671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9323560.

The product of its (nonzero) digits is 37044, while the sum is 39.

The square root of 27970671 is about 5288.7305660243. The cubic root of 27970671 is about 303.5528361973.

The spelling of 27970671 in words is "twenty-seven million, nine hundred seventy thousand, six hundred seventy-one".