27949982 has 4 divisors (see below), whose sum is σ = 41924976. Its totient is φ = 13974990.

The previous prime is 27949973. The next prime is 27950047. The reversal of 27949982 is 28994972.

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

It is a self number, because there is not a number n which added to its sum of digits gives 27949982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6987494 + ... + 6987497.

It is an arithmetic number, because the mean of its divisors is an integer number (10481244).

Almost surely, 2^27949982 is an apocalyptic number.

27949982 is a deficient number, since it is larger than the sum of its proper divisors (13974994).

27949982 is a wasteful number, since it uses less digits than its factorization.

27949982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13974993.

The product of its digits is 653184, while the sum is 50.

The square root of 27949982 is about 5286.7742527935. The cubic root of 27949982 is about 303.4779750009.

The spelling of 27949982 in words is "twenty-seven million, nine hundred forty-nine thousand, nine hundred eighty-two".