27864994 has 8 divisors (see below), whose sum is σ = 42817068. Its totient is φ = 13592640.

The previous prime is 27864979. The next prime is 27864997. The reversal of 27864994 is 49946872.

It can be written as a sum of positive squares in 2 ways, for example, as 26388769 + 1476225 = 5137^2 + 1215^2 .

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 (27864997) 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, 169827 + ... + 169990.

Almost surely, 2^27864994 is an apocalyptic number.

27864994 is a deficient number, since it is larger than the sum of its proper divisors (14952074).

27864994 is a wasteful number, since it uses less digits than its factorization.

27864994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339860.

The product of its digits is 870912, while the sum is 49.

The square root of 27864994 is about 5278.7303397692. The cubic root of 27864994 is about 303.1700657693.

The spelling of 27864994 in words is "twenty-seven million, eight hundred sixty-four thousand, nine hundred ninety-four".