27690141 has 16 divisors (see below), whose sum is σ = 37658304. Its totient is φ = 18094464.

The previous prime is 27690139. The next prime is 27690149. The reversal of 27690141 is 14109672.

It is a happy number.

It is not a de Polignac number, because 27690141 - 2¹ = 27690139 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 27690099 and 27690108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27690149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49435 + ... + 49991.

It is an arithmetic number, because the mean of its divisors is an integer number (2353644).

Almost surely, 2^27690141 is an apocalyptic number.

It is an amenable number.

27690141 is a deficient number, since it is larger than the sum of its proper divisors (9968163).

27690141 is a wasteful number, since it uses less digits than its factorization.

27690141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 27690141 is about 5262.1422443716. The cubic root of 27690141 is about 302.5346034226.

The spelling of 27690141 in words is "twenty-seven million, six hundred ninety thousand, one hundred forty-one".