27440929 has 2 divisors, whose sum is σ = 27440930. Its totient is φ = 27440928.

The previous prime is 27440927. The next prime is 27440953. The reversal of 27440929 is 92904472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25522704 + 1918225 = 5052^2 + 1385^2 .

It is a cyclic number.

It is not a de Polignac number, because 27440929 - 2¹ = 27440927 is a prime.

Together with 27440927, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (27440927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13720464 + 13720465.

It is an arithmetic number, because the mean of its divisors is an integer number (13720465).

Almost surely, 2^27440929 is an apocalyptic number.

It is an amenable number.

27440929 is a deficient number, since it is larger than the sum of its proper divisors (1).

27440929 is an equidigital number, since it uses as much as digits as its factorization.

27440929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 27440929 is about 5238.4090141951. The cubic root of 27440929 is about 301.6242604263.

The spelling of 27440929 in words is "twenty-seven million, four hundred forty thousand, nine hundred twenty-nine".