27680386 has 8 divisors (see below), whose sum is σ = 43963020. Its totient is φ = 13026048.

The previous prime is 27680353. The next prime is 27680423. The reversal of 27680386 is 68308672.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 26204161 + 1476225 = 5119^2 + 1215^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407031 + ... + 407098.

Almost surely, 2^27680386 is an apocalyptic number.

27680386 is a deficient number, since it is larger than the sum of its proper divisors (16282634).

27680386 is a wasteful number, since it uses less digits than its factorization.

27680386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814148.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 27680386 is about 5261.2152588542. The cubic root of 27680386 is about 302.4990724649.

The spelling of 27680386 in words is "twenty-seven million, six hundred eighty thousand, three hundred eighty-six".