13007649 has 4 divisors (see below), whose sum is σ = 17343536. Its totient is φ = 8671764.

The previous prime is 13007641. The next prime is 13007653. The reversal of 13007649 is 94670031.

It is a happy number.

13007649 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13007649 - 2³ = 13007641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13007641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2167939 + ... + 2167944.

It is an arithmetic number, because the mean of its divisors is an integer number (4335884).

Almost surely, 2^13007649 is an apocalyptic number.

It is an amenable number.

13007649 is a deficient number, since it is larger than the sum of its proper divisors (4335887).

13007649 is an equidigital number, since it uses as much as digits as its factorization.

13007649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4335886.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 13007649 is about 3606.6118449315. The cubic root of 13007649 is about 235.1795760355.

The spelling of 13007649 in words is "thirteen million, seven thousand, six hundred forty-nine".