27654691 has 2 divisors, whose sum is σ = 27654692. Its totient is φ = 27654690.

The previous prime is 27654673. The next prime is 27654707. The reversal of 27654691 is 19645672.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27654691 - 2¹¹ = 27652643 is a prime.

It is not a weakly prime, because it can be changed into another prime (27654191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13827345 + 13827346.

It is an arithmetic number, because the mean of its divisors is an integer number (13827346).

Almost surely, 2^27654691 is an apocalyptic number.

27654691 is a deficient number, since it is larger than the sum of its proper divisors (1).

27654691 is an equidigital number, since it uses as much as digits as its factorization.

27654691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 40.

The square root of 27654691 is about 5258.7727655794. The cubic root of 27654691 is about 302.4054427496.

The spelling of 27654691 in words is "twenty-seven million, six hundred fifty-four thousand, six hundred ninety-one".