27380789 has 2 divisors, whose sum is σ = 27380790. Its totient is φ = 27380788.

The previous prime is 27380753. The next prime is 27380813. The reversal of 27380789 is 98708372.

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., 27352900 + 27889 = 5230^2 + 167^2 .

It is a cyclic number.

It is not a de Polignac number, because 27380789 - 2²⁴ = 10603573 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27383789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13690394 + 13690395.

It is an arithmetic number, because the mean of its divisors is an integer number (13690395).

Almost surely, 2^27380789 is an apocalyptic number.

It is an amenable number.

27380789 is a deficient number, since it is larger than the sum of its proper divisors (1).

27380789 is an equidigital number, since it uses as much as digits as its factorization.

27380789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 27380789 is about 5232.6655731090. The cubic root of 27380789 is about 301.4037509952.

The spelling of 27380789 in words is "twenty-seven million, three hundred eighty thousand, seven hundred eighty-nine".