27687442 has 8 divisors (see below), whose sum is σ = 42497136. Its totient is φ = 13521732.

The previous prime is 27687391. The next prime is 27687449. The reversal of 27687442 is 24478672.

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

It is a junction number, because it is equal to n+sod(n) for n = 27687395 and 27687404.

It is not an unprimeable number, because it can be changed into a prime (27687449) 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, 160888 + ... + 161059.

It is an arithmetic number, because the mean of its divisors is an integer number (5312142).

Almost surely, 2^27687442 is an apocalyptic number.

27687442 is a deficient number, since it is larger than the sum of its proper divisors (14809694).

27687442 is a wasteful number, since it uses less digits than its factorization.

27687442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321992.

The product of its digits is 150528, while the sum is 40.

The square root of 27687442 is about 5261.8857836331. The cubic root of 27687442 is about 302.5247736012.

The spelling of 27687442 in words is "twenty-seven million, six hundred eighty-seven thousand, four hundred forty-two".