27772742 has 8 divisors (see below), whose sum is σ = 42445296. Its totient is φ = 13624312.

The previous prime is 27772739. The next prime is 27772763. The reversal of 27772742 is 24727772.

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 = 27772696 and 27772705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130898 + ... + 131109.

It is an arithmetic number, because the mean of its divisors is an integer number (5305662).

Almost surely, 2^27772742 is an apocalyptic number.

27772742 is a deficient number, since it is larger than the sum of its proper divisors (14672554).

27772742 is a wasteful number, since it uses less digits than its factorization.

27772742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262062.

The product of its digits is 76832, while the sum is 38.

The square root of 27772742 is about 5269.9850094663. The cubic root of 27772742 is about 302.8351298016.

The spelling of 27772742 in words is "twenty-seven million, seven hundred seventy-two thousand, seven hundred forty-two".