13328973 has 12 divisors (see below), whose sum is σ = 22003488. Its totient is φ = 7616520.

The previous prime is 13328971. The next prime is 13328981. The reversal of 13328973 is 37982331.

It is a happy number.

13328973 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13328973 - 2¹ = 13328971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13328971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105723 + ... + 105848.

It is an arithmetic number, because the mean of its divisors is an integer number (1833624).

Almost surely, 2^13328973 is an apocalyptic number.

It is an amenable number.

13328973 is a deficient number, since it is larger than the sum of its proper divisors (8674515).

13328973 is a wasteful number, since it uses less digits than its factorization.

13328973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211584 (or 211581 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 13328973 is about 3650.8866046482. The cubic root of 13328973 is about 237.1003687470.

The spelling of 13328973 in words is "thirteen million, three hundred twenty-eight thousand, nine hundred seventy-three".