13398529 has 4 divisors (see below), whose sum is σ = 13409280. Its totient is φ = 13387780.

The previous prime is 13398503. The next prime is 13398547. The reversal of 13398529 is 92589331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13398529 - 2¹⁵ = 13365761 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13398491 and 13398500.

It is not an unprimeable number, because it can be changed into a prime (13398569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3217 + ... + 6094.

It is an arithmetic number, because the mean of its divisors is an integer number (3352320).

Almost surely, 2^13398529 is an apocalyptic number.

It is an amenable number.

13398529 is a deficient number, since it is larger than the sum of its proper divisors (10751).

13398529 is an equidigital number, since it uses as much as digits as its factorization.

13398529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10750.

The product of its digits is 58320, while the sum is 40.

The square root of 13398529 is about 3660.4001147416. The cubic root of 13398529 is about 237.5120821185.

The spelling of 13398529 in words is "thirteen million, three hundred ninety-eight thousand, five hundred twenty-nine".