27742829 has 2 divisors, whose sum is σ = 27742830. Its totient is φ = 27742828.

The previous prime is 27742823. The next prime is 27742837. The reversal of 27742829 is 92824772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26112100 + 1630729 = 5110^2 + 1277^2 .

It is a cyclic number.

It is not a de Polignac number, because 27742829 - 2⁸ = 27742573 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27742823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13871414 + 13871415.

It is an arithmetic number, because the mean of its divisors is an integer number (13871415).

Almost surely, 2^27742829 is an apocalyptic number.

It is an amenable number.

27742829 is a deficient number, since it is larger than the sum of its proper divisors (1).

27742829 is an equidigital number, since it uses as much as digits as its factorization.

27742829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 41.

The square root of 27742829 is about 5267.1461912501. The cubic root of 27742829 is about 302.7263665467.

The spelling of 27742829 in words is "twenty-seven million, seven hundred forty-two thousand, eight hundred twenty-nine".