27839742 has 24 divisors (see below), whose sum is σ = 64770696. Its totient is φ = 7954128.

The previous prime is 27839701. The next prime is 27839753. The reversal of 27839742 is 24793872.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 27839694 and 27839703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47053 + ... + 47640.

It is an arithmetic number, because the mean of its divisors is an integer number (2698779).

Almost surely, 2^27839742 is an apocalyptic number.

27839742 is an abundant number, since it is smaller than the sum of its proper divisors (36930954).

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

27839742 is a wasteful number, since it uses less digits than its factorization.

27839742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94712 (or 94705 counting only the distinct ones).

The product of its digits is 169344, while the sum is 42.

The square root of 27839742 is about 5276.3379345906. The cubic root of 27839742 is about 303.0784578275.

The spelling of 27839742 in words is "twenty-seven million, eight hundred thirty-nine thousand, seven hundred forty-two".