13398649 has 8 divisors (see below), whose sum is σ = 14652000. Its totient is φ = 12151200.

The previous prime is 13398641. The next prime is 13398653. The reversal of 13398649 is 94689331.

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 13398649 - 2³ = 13398641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13398641) 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, 4269 + ... + 6709.

It is an arithmetic number, because the mean of its divisors is an integer number (1831500).

Almost surely, 2^13398649 is an apocalyptic number.

It is an amenable number.

13398649 is a deficient number, since it is larger than the sum of its proper divisors (1253351).

13398649 is a wasteful number, since it uses less digits than its factorization.

13398649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2951.

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

The square root of 13398649 is about 3660.4165063555. The cubic root of 13398649 is about 237.5127911855.

The spelling of 13398649 in words is "thirteen million, three hundred ninety-eight thousand, six hundred forty-nine".