27713779 has 2 divisors, whose sum is σ = 27713780. Its totient is φ = 27713778.

The previous prime is 27713737. The next prime is 27713831. The reversal of 27713779 is 97731772.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27713779 - 2¹⁵ = 27681011 is a prime.

It is not a weakly prime, because it can be changed into another prime (27713729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13856889 + 13856890.

It is an arithmetic number, because the mean of its divisors is an integer number (13856890).

Almost surely, 2^27713779 is an apocalyptic number.

27713779 is a deficient number, since it is larger than the sum of its proper divisors (1).

27713779 is an equidigital number, since it uses as much as digits as its factorization.

27713779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129654, while the sum is 43.

The square root of 27713779 is about 5264.3878086630. The cubic root of 27713779 is about 302.6206662923.

The spelling of 27713779 in words is "twenty-seven million, seven hundred thirteen thousand, seven hundred seventy-nine".