27884993 has 8 divisors (see below), whose sum is σ = 29592000. Its totient is φ = 26219248.

The previous prime is 27884963. The next prime is 27884999. The reversal of 27884993 is 39948872.

It is a happy number.

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 27884993 - 2⁸ = 27884737 is a prime.

It is a super-2 number, since 2×27884993² = 1555145669220098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27884999) 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, 8918 + ... + 11631.

It is an arithmetic number, because the mean of its divisors is an integer number (3699000).

Almost surely, 2^27884993 is an apocalyptic number.

27884993 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

27884993 is a deficient number, since it is larger than the sum of its proper divisors (1707007).

27884993 is a wasteful number, since it uses less digits than its factorization.

27884993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20631.

The product of its digits is 870912, while the sum is 50.

The square root of 27884993 is about 5280.6243002130. The cubic root of 27884993 is about 303.2425778755.

The spelling of 27884993 in words is "twenty-seven million, eight hundred eighty-four thousand, nine hundred ninety-three".