27493939 has 4 divisors (see below), whose sum is σ = 29993400. Its totient is φ = 24994480.

The previous prime is 27493897. The next prime is 27493957. The reversal of 27493939 is 93939472.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27493939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27493139) 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, 1249714 + ... + 1249735.

It is an arithmetic number, because the mean of its divisors is an integer number (7498350).

Almost surely, 2^27493939 is an apocalyptic number.

27493939 is a deficient number, since it is larger than the sum of its proper divisors (2499461).

27493939 is a wasteful number, since it uses less digits than its factorization.

27493939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2499460.

The product of its digits is 367416, while the sum is 46.

The square root of 27493939 is about 5243.4663153300. The cubic root of 27493939 is about 301.8183599924.

The spelling of 27493939 in words is "twenty-seven million, four hundred ninety-three thousand, nine hundred thirty-nine".