27993001 has 8 divisors (see below), whose sum is σ = 29306304. Its totient is φ = 26687760.

The previous prime is 27992989. The next prime is 27993011. The reversal of 27993001 is 10039972.

27993001 is nontrivially palindromic in base 4.

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 27993001 - 2¹¹ = 27990953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27993011) 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 7 ways as a sum of consecutive naturals, for example, 5775 + ... + 9451.

It is an arithmetic number, because the mean of its divisors is an integer number (3663288).

Almost surely, 2^27993001 is an apocalyptic number.

It is an amenable number.

27993001 is a deficient number, since it is larger than the sum of its proper divisors (1313303).

27993001 is a wasteful number, since it uses less digits than its factorization.

27993001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4031.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 27993001 is about 5290.8412374593. The cubic root of 27993001 is about 303.6335937860.

The spelling of 27993001 in words is "twenty-seven million, nine hundred ninety-three thousand, one".