27949199 has 4 divisors (see below), whose sum is σ = 27963480. Its totient is φ = 27934920.

The previous prime is 27949189. The next prime is 27949211. The reversal of 27949199 is 99194972.

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-27949199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27949169) 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, 3629 + ... + 8310.

It is an arithmetic number, because the mean of its divisors is an integer number (6990870).

Almost surely, 2^27949199 is an apocalyptic number.

27949199 is a deficient number, since it is larger than the sum of its proper divisors (14281).

27949199 is a wasteful number, since it uses less digits than its factorization.

27949199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14280.

The product of its digits is 367416, while the sum is 50.

The square root of 27949199 is about 5286.7001995574. The cubic root of 27949199 is about 303.4751410638.

The spelling of 27949199 in words is "twenty-seven million, nine hundred forty-nine thousand, one hundred ninety-nine".