27707742 has 24 divisors (see below), whose sum is σ = 60442200. Its totient is φ = 9173040.

The previous prime is 27707741. The next prime is 27707767. The reversal of 27707742 is 24770772.

It is a junction number, because it is equal to n+sod(n) for n = 27707697 and 27707706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27707741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2484 + ... + 7847.

It is an arithmetic number, because the mean of its divisors is an integer number (2518425).

Almost surely, 2^27707742 is an apocalyptic number.

27707742 is an abundant number, since it is smaller than the sum of its proper divisors (32734458).

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

27707742 is a wasteful number, since it uses less digits than its factorization.

27707742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10488 (or 10485 counting only the distinct ones).

The product of its (nonzero) digits is 38416, while the sum is 36.

The square root of 27707742 is about 5263.8143964239. The cubic root of 27707742 is about 302.5986910186.

The spelling of 27707742 in words is "twenty-seven million, seven hundred seven thousand, seven hundred forty-two".