13389649 has 8 divisors (see below), whose sum is σ = 16479680. Its totient is φ = 10593936.

The previous prime is 13389647. The next prime is 13389653. The reversal of 13389649 is 94698331.

13389649 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

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 13389649 - 2¹ = 13389647 is a prime.

13389649 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (13389647) 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, 73479 + ... + 73660.

It is an arithmetic number, because the mean of its divisors is an integer number (2059960).

Almost surely, 2^13389649 is an apocalyptic number.

It is an amenable number.

13389649 is a deficient number, since it is larger than the sum of its proper divisors (3090031).

13389649 is a wasteful number, since it uses less digits than its factorization.

13389649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147159.

The product of its digits is 139968, while the sum is 43.

The square root of 13389649 is about 3659.1869315464. The cubic root of 13389649 is about 237.4595994068.

The spelling of 13389649 in words is "thirteen million, three hundred eighty-nine thousand, six hundred forty-nine".