27942705 has 32 divisors (see below), whose sum is σ = 56774400. Its totient is φ = 12773376.

The previous prime is 27942683. The next prime is 27942731. The reversal of 27942705 is 50724972.

It is not a de Polignac number, because 27942705 - 2⁶ = 27942641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27942705.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13840 + ... + 15729.

It is an arithmetic number, because the mean of its divisors is an integer number (1774200).

Almost surely, 2^27942705 is an apocalyptic number.

It is an amenable number.

27942705 is an abundant number, since it is smaller than the sum of its proper divisors (28831695).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27942705 is a wasteful number, since it uses less digits than its factorization.

27942705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29590 (or 29584 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 27942705 is about 5286.0859811395. The cubic root of 27942705 is about 303.4516350804.

The spelling of 27942705 in words is "twenty-seven million, nine hundred forty-two thousand, seven hundred five".