27953930 has 8 divisors (see below), whose sum is σ = 50317092. Its totient is φ = 11181568.

The previous prime is 27953917. The next prime is 27953951. The reversal of 27953930 is 3935972.

It can be written as a sum of positive squares in 2 ways, for example, as 26615281 + 1338649 = 5159^2 + 1157^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1397687 + ... + 1397706.

Almost surely, 2^27953930 is an apocalyptic number.

27953930 is a deficient number, since it is larger than the sum of its proper divisors (22363162).

27953930 is a wasteful number, since it uses less digits than its factorization.

27953930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2795400.

The product of its (nonzero) digits is 51030, while the sum is 38.

The square root of 27953930 is about 5287.1476241921. The cubic root of 27953930 is about 303.4922633182.

The spelling of 27953930 in words is "twenty-seven million, nine hundred fifty-three thousand, nine hundred thirty".