27839641 has 2 divisors, whose sum is σ = 27839642. Its totient is φ = 27839640.

The previous prime is 27839629. The next prime is 27839653. The reversal of 27839641 is 14693872.

It is a balanced prime because it is at equal distance from previous prime (27839629) and next prime (27839653).

It can be written as a sum of positive squares in only one way, i.e., 19545241 + 8294400 = 4421^2 + 2880^2 .

It is a cyclic number.

It is not a de Polignac number, because 27839641 - 2¹⁵ = 27806873 is a prime.

It is a super-2 number, since 2×27839641² = 1550091222017762, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27839594 and 27839603.

It is not a weakly prime, because it can be changed into another prime (27839941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13919820 + 13919821.

It is an arithmetic number, because the mean of its divisors is an integer number (13919821).

Almost surely, 2^27839641 is an apocalyptic number.

It is an amenable number.

27839641 is a deficient number, since it is larger than the sum of its proper divisors (1).

27839641 is an equidigital number, since it uses as much as digits as its factorization.

27839641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 40.

The square root of 27839641 is about 5276.3283635498. The cubic root of 27839641 is about 303.0780913135.

The spelling of 27839641 in words is "twenty-seven million, eight hundred thirty-nine thousand, six hundred forty-one".