13329641 has 8 divisors (see below), whose sum is σ = 14396424. Its totient is φ = 12268800.

The previous prime is 13329637. The next prime is 13329653. The reversal of 13329641 is 14692331.

It can be written as a sum of positive squares in 4 ways, for example, as 3115225 + 10214416 = 1765^2 + 3196^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13329641 - 2² = 13329637 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13329601) 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 7 ways as a sum of consecutive naturals, for example, 3935 + ... + 6491.

It is an arithmetic number, because the mean of its divisors is an integer number (1799553).

Almost surely, 2^13329641 is an apocalyptic number.

It is an amenable number.

13329641 is a deficient number, since it is larger than the sum of its proper divisors (1066783).

13329641 is a wasteful number, since it uses less digits than its factorization.

13329641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2971.

The product of its digits is 3888, while the sum is 29.

The square root of 13329641 is about 3650.9780881293. The cubic root of 13329641 is about 237.1043295523.

The spelling of 13329641 in words is "thirteen million, three hundred twenty-nine thousand, six hundred forty-one".