27983379 has 4 divisors (see below), whose sum is σ = 37311176. Its totient is φ = 18655584.

The previous prime is 27983353. The next prime is 27983381. The reversal of 27983379 is 97338972.

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

It is not a de Polignac number, because 27983379 - 2¹³ = 27975187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27933379) 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, 4663894 + ... + 4663899.

It is an arithmetic number, because the mean of its divisors is an integer number (9327794).

Almost surely, 2^27983379 is an apocalyptic number.

27983379 is a deficient number, since it is larger than the sum of its proper divisors (9327797).

27983379 is an equidigital number, since it uses as much as digits as its factorization.

27983379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9327796.

The product of its digits is 571536, while the sum is 48.

The square root of 27983379 is about 5289.9318521130. The cubic root of 27983379 is about 303.5988005980.

The spelling of 27983379 in words is "twenty-seven million, nine hundred eighty-three thousand, three hundred seventy-nine".