27139829 has 4 divisors (see below), whose sum is σ = 27153984. Its totient is φ = 27125676.

The previous prime is 27139817. The next prime is 27139841. The reversal of 27139829 is 92893172.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (27139817) and next prime (27139841).

It is a cyclic number.

It is not a de Polignac number, because 27139829 - 2⁴ = 27139813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27139529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3647 + ... + 8220.

It is an arithmetic number, because the mean of its divisors is an integer number (6788496).

Almost surely, 2^27139829 is an apocalyptic number.

It is an amenable number.

27139829 is a deficient number, since it is larger than the sum of its proper divisors (14155).

27139829 is a wasteful number, since it uses less digits than its factorization.

27139829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14154.

The product of its digits is 54432, while the sum is 41.

The square root of 27139829 is about 5209.5900990385. The cubic root of 27139829 is about 300.5169937317.

The spelling of 27139829 in words is "twenty-seven million, one hundred thirty-nine thousand, eight hundred twenty-nine".