27929371 has 2 divisors, whose sum is σ = 27929372. Its totient is φ = 27929370.

The previous prime is 27929333. The next prime is 27929381. The reversal of 27929371 is 17392972.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27929371 - 2¹¹ = 27927323 is a prime.

It is not a weakly prime, because it can be changed into another prime (27929381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13964685 + 13964686.

It is an arithmetic number, because the mean of its divisors is an integer number (13964686).

Almost surely, 2^27929371 is an apocalyptic number.

27929371 is a deficient number, since it is larger than the sum of its proper divisors (1).

27929371 is an equidigital number, since it uses as much as digits as its factorization.

27929371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47628, while the sum is 40.

The square root of 27929371 is about 5284.8245950079. The cubic root of 27929371 is about 303.4033592975.

The spelling of 27929371 in words is "twenty-seven million, nine hundred twenty-nine thousand, three hundred seventy-one".