27687742 has 8 divisors (see below), whose sum is σ = 41749632. Its totient is φ = 13771200.

The previous prime is 27687719. The next prime is 27687749. The reversal of 27687742 is 24778672.

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

It is a super-2 number, since 2×27687742² = 1533222114117128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27687749) 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, 35859 + ... + 36622.

It is an arithmetic number, because the mean of its divisors is an integer number (5218704).

Almost surely, 2^27687742 is an apocalyptic number.

27687742 is a deficient number, since it is larger than the sum of its proper divisors (14061890).

27687742 is a wasteful number, since it uses less digits than its factorization.

27687742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72674.

The product of its digits is 263424, while the sum is 43.

The square root of 27687742 is about 5261.9142904460. The cubic root of 27687742 is about 302.5258662398.

The spelling of 27687742 in words is "twenty-seven million, six hundred eighty-seven thousand, seven hundred forty-two".