27656742 has 16 divisors (see below), whose sum is σ = 58224960. Its totient is φ = 8733672.

The previous prime is 27656731. The next prime is 27656771. The reversal of 27656742 is 24765672.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 27656742.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121188 + ... + 121415.

It is an arithmetic number, because the mean of its divisors is an integer number (3639060).

Almost surely, 2^27656742 is an apocalyptic number.

27656742 is an abundant number, since it is smaller than the sum of its proper divisors (30568218).

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

27656742 is a wasteful number, since it uses less digits than its factorization.

27656742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242627.

The product of its digits is 141120, while the sum is 39.

The square root of 27656742 is about 5258.9677694392. The cubic root of 27656742 is about 302.4129184943.

The spelling of 27656742 in words is "twenty-seven million, six hundred fifty-six thousand, seven hundred forty-two".