27449993 has 4 divisors (see below), whose sum is σ = 27522048. Its totient is φ = 27377940.

The previous prime is 27449987. The next prime is 27449999. The reversal of 27449993 is 39994472.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (27449987) and next prime (27449999).

It is a cyclic number.

It is not a de Polignac number, because 27449993 - 2¹⁰ = 27448969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27449999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35453 + ... + 36218.

It is an arithmetic number, because the mean of its divisors is an integer number (6880512).

Almost surely, 2^27449993 is an apocalyptic number.

It is an amenable number.

27449993 is a deficient number, since it is larger than the sum of its proper divisors (72055).

27449993 is an equidigital number, since it uses as much as digits as its factorization.

27449993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72054.

The product of its digits is 489888, while the sum is 47.

The square root of 27449993 is about 5239.2740909405. The cubic root of 27449993 is about 301.6574665584.

The spelling of 27449993 in words is "twenty-seven million, four hundred forty-nine thousand, nine hundred ninety-three".