27946129 has 2 divisors, whose sum is σ = 27946130. Its totient is φ = 27946128.

The previous prime is 27946123. The next prime is 27946189. The reversal of 27946129 is 92164972.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17833729 + 10112400 = 4223^2 + 3180^2 .

It is a cyclic number.

It is not a de Polignac number, because 27946129 - 2¹³ = 27937937 is a prime.

It is a super-2 number, since 2×27946129² = 1561972252169282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27946091 and 27946100.

It is not a weakly prime, because it can be changed into another prime (27946123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13973064 + 13973065.

It is an arithmetic number, because the mean of its divisors is an integer number (13973065).

Almost surely, 2^27946129 is an apocalyptic number.

It is an amenable number.

27946129 is a deficient number, since it is larger than the sum of its proper divisors (1).

27946129 is an equidigital number, since it uses as much as digits as its factorization.

27946129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 40.

The square root of 27946129 is about 5286.4098403359. The cubic root of 27946129 is about 303.4640292033.

The spelling of 27946129 in words is "twenty-seven million, nine hundred forty-six thousand, one hundred twenty-nine".