27641623 has 2 divisors, whose sum is σ = 27641624. Its totient is φ = 27641622.

The previous prime is 27641617. The next prime is 27641629. The reversal of 27641623 is 32614672.

It is a balanced prime because it is at equal distance from previous prime (27641617) and next prime (27641629).

It is a cyclic number.

It is not a de Polignac number, because 27641623 - 2⁵ = 27641591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27641629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13820811 + 13820812.

It is an arithmetic number, because the mean of its divisors is an integer number (13820812).

Almost surely, 2^27641623 is an apocalyptic number.

27641623 is a deficient number, since it is larger than the sum of its proper divisors (1).

27641623 is an equidigital number, since it uses as much as digits as its factorization.

27641623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 31.

The square root of 27641623 is about 5257.5301235466. The cubic root of 27641623 is about 302.3578021648.

The spelling of 27641623 in words is "twenty-seven million, six hundred forty-one thousand, six hundred twenty-three".