13597823 has 2 divisors, whose sum is σ = 13597824. Its totient is φ = 13597822.

The previous prime is 13597819. The next prime is 13597861. The reversal of 13597823 is 32879531.

It is an a-pointer prime, because the next prime (13597861) can be obtained adding 13597823 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13597823 - 2² = 13597819 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13597813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6798911 + 6798912.

It is an arithmetic number, because the mean of its divisors is an integer number (6798912).

Almost surely, 2^13597823 is an apocalyptic number.

13597823 is a deficient number, since it is larger than the sum of its proper divisors (1).

13597823 is an equidigital number, since it uses as much as digits as its factorization.

13597823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 38.

The square root of 13597823 is about 3687.5226101002. The cubic root of 13597823 is about 238.6839013680.

The spelling of 13597823 in words is "thirteen million, five hundred ninety-seven thousand, eight hundred twenty-three".