27342869 has 2 divisors, whose sum is σ = 27342870. Its totient is φ = 27342868.

The previous prime is 27342839. The next prime is 27342893. The reversal of 27342869 is 96824372.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16200625 + 11142244 = 4025^2 + 3338^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27342869 is a prime.

It is a super-2 number, since 2×27342869² = 1495264970302322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27342839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13671434 + 13671435.

It is an arithmetic number, because the mean of its divisors is an integer number (13671435).

Almost surely, 2^27342869 is an apocalyptic number.

It is an amenable number.

27342869 is a deficient number, since it is larger than the sum of its proper divisors (1).

27342869 is an equidigital number, since it uses as much as digits as its factorization.

27342869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 41.

The square root of 27342869 is about 5229.0409254470. The cubic root of 27342869 is about 301.2645474285.

The spelling of 27342869 in words is "twenty-seven million, three hundred forty-two thousand, eight hundred sixty-nine".