27213982 has 4 divisors (see below), whose sum is σ = 40820976. Its totient is φ = 13606990.

The previous prime is 27213971. The next prime is 27213983. The reversal of 27213982 is 28931272.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27213983) 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 as a sum of consecutive naturals, namely, 6803494 + ... + 6803497.

It is an arithmetic number, because the mean of its divisors is an integer number (10205244).

Almost surely, 2^27213982 is an apocalyptic number.

27213982 is a deficient number, since it is larger than the sum of its proper divisors (13606994).

27213982 is a wasteful number, since it uses less digits than its factorization.

27213982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13606993.

The product of its digits is 12096, while the sum is 34.

The square root of 27213982 is about 5216.7022150014. The cubic root of 27213982 is about 300.7904414379.

The spelling of 27213982 in words is "twenty-seven million, two hundred thirteen thousand, nine hundred eighty-two".