27997673 has 8 divisors (see below), whose sum is σ = 31596480. Its totient is φ = 24574480.

The previous prime is 27997663. The next prime is 27997699. The reversal of 27997673 is 37679972.

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

It is a cyclic number.

It is not a de Polignac number, because 27997673 - 2¹⁶ = 27932137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27997633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43565 + ... + 44202.

It is an arithmetic number, because the mean of its divisors is an integer number (3949560).

Almost surely, 2^27997673 is an apocalyptic number.

It is an amenable number.

27997673 is a deficient number, since it is larger than the sum of its proper divisors (3598807).

27997673 is a wasteful number, since it uses less digits than its factorization.

27997673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87807.

The product of its digits is 1000188, while the sum is 50.

The square root of 27997673 is about 5291.2827367284. The cubic root of 27997673 is about 303.6504848801.

The spelling of 27997673 in words is "twenty-seven million, nine hundred ninety-seven thousand, six hundred seventy-three".