13913623 has 2 divisors, whose sum is σ = 13913624. Its totient is φ = 13913622.

The previous prime is 13913621. The next prime is 13913671. The reversal of 13913623 is 32631931.

13913623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13913623 - 2¹ = 13913621 is a prime.

It is a super-2 number, since 2×13913623² = 387177809972258, which contains 22 as substring.

Together with 13913621, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 13913591 and 13913600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13913621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6956811 + 6956812.

It is an arithmetic number, because the mean of its divisors is an integer number (6956812).

Almost surely, 2^13913623 is an apocalyptic number.

13913623 is a deficient number, since it is larger than the sum of its proper divisors (1).

13913623 is an equidigital number, since it uses as much as digits as its factorization.

13913623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2916, while the sum is 28.

The square root of 13913623 is about 3730.0969156310. The cubic root of 13913623 is about 240.5175348087.

The spelling of 13913623 in words is "thirteen million, nine hundred thirteen thousand, six hundred twenty-three".