27993719 has 8 divisors (see below), whose sum is σ = 30962400. Its totient is φ = 25141536.

The previous prime is 27993703. The next prime is 27993727. The reversal of 27993719 is 91739972.

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 27993719 - 2⁴ = 27993703 is a prime.

It is a super-2 number, since 2×27993719² = 1567296606901922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27993419) 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, 28619 + ... + 29580.

It is an arithmetic number, because the mean of its divisors is an integer number (3870300).

Almost surely, 2^27993719 is an apocalyptic number.

27993719 is a deficient number, since it is larger than the sum of its proper divisors (2968681).

27993719 is a wasteful number, since it uses less digits than its factorization.

27993719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58249.

The product of its digits is 214326, while the sum is 47.

The square root of 27993719 is about 5290.9090901281. The cubic root of 27993719 is about 303.6361897570.

The spelling of 27993719 in words is "twenty-seven million, nine hundred ninety-three thousand, seven hundred nineteen".