13641623 has 2 divisors, whose sum is σ = 13641624. Its totient is φ = 13641622.

The previous prime is 13641557. The next prime is 13641637. The reversal of 13641623 is 32614631.

13641623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13641623 - 2⁸ = 13641367 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 13641592 and 13641601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13641673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6820811 + 6820812.

It is an arithmetic number, because the mean of its divisors is an integer number (6820812).

Almost surely, 2^13641623 is an apocalyptic number.

13641623 is a deficient number, since it is larger than the sum of its proper divisors (1).

13641623 is an equidigital number, since it uses as much as digits as its factorization.

13641623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 26.

The square root of 13641623 is about 3693.4567819321. The cubic root of 13641623 is about 238.9399019075.

The spelling of 13641623 in words is "thirteen million, six hundred forty-one thousand, six hundred twenty-three".