13329021 has 8 divisors (see below), whose sum is σ = 17870944. Its totient is φ = 8836560.

The previous prime is 13329007. The next prime is 13329079. The reversal of 13329021 is 12092331.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13329021 - 2¹³ = 13320829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13329091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11731 + ... + 12816.

It is an arithmetic number, because the mean of its divisors is an integer number (2233868).

Almost surely, 2^13329021 is an apocalyptic number.

It is an amenable number.

13329021 is a deficient number, since it is larger than the sum of its proper divisors (4541923).

13329021 is a wasteful number, since it uses less digits than its factorization.

13329021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24731.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 13329021 is about 3650.8931783880. The cubic root of 13329021 is about 237.1006533602.

The spelling of 13329021 in words is "thirteen million, three hundred twenty-nine thousand, twenty-one".