27957119 has 2 divisors, whose sum is σ = 27957120. Its totient is φ = 27957118.

The previous prime is 27957107. The next prime is 27957143. The reversal of 27957119 is 91175972.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27957119 is a prime.

It is a super-2 number, since 2×27957119² = 1563201005560322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27957199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13978559 + 13978560.

It is an arithmetic number, because the mean of its divisors is an integer number (13978560).

Almost surely, 2^27957119 is an apocalyptic number.

27957119 is a deficient number, since it is larger than the sum of its proper divisors (1).

27957119 is an equidigital number, since it uses as much as digits as its factorization.

27957119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39690, while the sum is 41.

The square root of 27957119 is about 5287.4491959734. The cubic root of 27957119 is about 303.5038037352.

The spelling of 27957119 in words is "twenty-seven million, nine hundred fifty-seven thousand, one hundred nineteen".