13328975 has 24 divisors (see below), whose sum is σ = 18986880. Its totient is φ = 9180000.

The previous prime is 13328971. The next prime is 13328981. The reversal of 13328975 is 57982331.

It is not a de Polignac number, because 13328975 - 2² = 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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3950 + ... + 6500.

It is an arithmetic number, because the mean of its divisors is an integer number (791120).

Almost surely, 2^13328975 is an apocalyptic number.

13328975 is a deficient number, since it is larger than the sum of its proper divisors (5657905).

13328975 is a wasteful number, since it uses less digits than its factorization.

13328975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591 (or 2586 counting only the distinct ones).

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

The square root of 13328975 is about 3650.8868785543. The cubic root of 13328975 is about 237.1003806059.

The spelling of 13328975 in words is "thirteen million, three hundred twenty-eight thousand, nine hundred seventy-five".