27993699 has 12 divisors (see below), whose sum is σ = 41198976. Its totient is φ = 18310032.

The previous prime is 27993697. The next prime is 27993701. The reversal of 27993699 is 99639972.

27993699 is a `hidden beast` number, since 279 + 9 + 369 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (27993697) and next prime (27993701).

It is not a de Polignac number, because 27993699 - 2¹ = 27993697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27993697) 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 11 ways as a sum of consecutive naturals, for example, 28867 + ... + 29820.

It is an arithmetic number, because the mean of its divisors is an integer number (3433248).

Almost surely, 2^27993699 is an apocalyptic number.

27993699 is a deficient number, since it is larger than the sum of its proper divisors (13205277).

27993699 is a wasteful number, since it uses less digits than its factorization.

27993699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58746 (or 58743 counting only the distinct ones).

The product of its digits is 1653372, while the sum is 54.

The square root of 27993699 is about 5290.9072000934. The cubic root of 27993699 is about 303.6361174465.

The spelling of 27993699 in words is "twenty-seven million, nine hundred ninety-three thousand, six hundred ninety-nine".