13547923 has 2 divisors, whose sum is σ = 13547924. Its totient is φ = 13547922.

The previous prime is 13547873. The next prime is 13547927. The reversal of 13547923 is 32974531.

It is a strong prime.

It is an emirp because it is prime and its reverse (32974531) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13547923 is a prime.

It is a super-2 number, since 2×13547923² = 367092435227858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13547927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6773961 + 6773962.

It is an arithmetic number, because the mean of its divisors is an integer number (6773962).

Almost surely, 2^13547923 is an apocalyptic number.

13547923 is a deficient number, since it is larger than the sum of its proper divisors (1).

13547923 is an equidigital number, since it uses as much as digits as its factorization.

13547923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 34.

The square root of 13547923 is about 3680.7503311146. The cubic root of 13547923 is about 238.3915769868.

The spelling of 13547923 in words is "thirteen million, five hundred forty-seven thousand, nine hundred twenty-three".