27102739 has 4 divisors (see below), whose sum is σ = 27231400. Its totient is φ = 26974080.

The previous prime is 27102703. The next prime is 27102781. The reversal of 27102739 is 93720172.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27102739 - 2¹³ = 27094547 is a prime.

It is a super-2 number, since 2×27102739² = 1469116922604242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27102739.

It is not an unprimeable number, because it can be changed into a prime (27102799) 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 3 ways as a sum of consecutive naturals, for example, 64014 + ... + 64435.

It is an arithmetic number, because the mean of its divisors is an integer number (6807850).

Almost surely, 2^27102739 is an apocalyptic number.

27102739 is a deficient number, since it is larger than the sum of its proper divisors (128661).

27102739 is a wasteful number, since it uses less digits than its factorization.

27102739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128660.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 27102739 is about 5206.0291009559. The cubic root of 27102739 is about 300.3800331941.

The spelling of 27102739 in words is "twenty-seven million, one hundred two thousand, seven hundred thirty-nine".