27680141 has 4 divisors (see below), whose sum is σ = 27925212. Its totient is φ = 27435072.

The previous prime is 27680137. The next prime is 27680183. The reversal of 27680141 is 14108672.

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

It can be written as a sum of positive squares in 2 ways, for example, as 940900 + 26739241 = 970^2 + 5171^2 .

It is a cyclic number.

It is not a de Polignac number, because 27680141 - 2² = 27680137 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27680101) 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, 122366 + ... + 122591.

It is an arithmetic number, because the mean of its divisors is an integer number (6981303).

Almost surely, 2^27680141 is an apocalyptic number.

It is an amenable number.

27680141 is a deficient number, since it is larger than the sum of its proper divisors (245071).

27680141 is a wasteful number, since it uses less digits than its factorization.

27680141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245070.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 27680141 is about 5261.1919752087. The cubic root of 27680141 is about 302.4981799859.

The spelling of 27680141 in words is "twenty-seven million, six hundred eighty thousand, one hundred forty-one".