27742929 has 16 divisors (see below), whose sum is σ = 39282048. Its totient is φ = 17356032.

The previous prime is 27742901. The next prime is 27742931. The reversal of 27742929 is 92924772.

It is not a de Polignac number, because 27742929 - 2⁷ = 27742801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27742229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24279 + ... + 25395.

It is an arithmetic number, because the mean of its divisors is an integer number (2455128).

Almost surely, 2^27742929 is an apocalyptic number.

It is an amenable number.

27742929 is a deficient number, since it is larger than the sum of its proper divisors (11539119).

27742929 is a wasteful number, since it uses less digits than its factorization.

27742929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1624.

The product of its digits is 127008, while the sum is 42.

The square root of 27742929 is about 5267.1556840481. The cubic root of 27742929 is about 302.7267302756.

The spelling of 27742929 in words is "twenty-seven million, seven hundred forty-two thousand, nine hundred twenty-nine".