13959649 has 12 divisors (see below), whose sum is σ = 15706768. Its totient is φ = 12390840.

The previous prime is 13959629. The next prime is 13959653. The reversal of 13959649 is 94695931.

It is a de Polignac number, because none of the positive numbers 2^k-13959649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13959599 and 13959608.

It is not an unprimeable number, because it can be changed into a prime (13959629) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3862 + ... + 6544.

Almost surely, 2^13959649 is an apocalyptic number.

It is an amenable number.

13959649 is a deficient number, since it is larger than the sum of its proper divisors (1747119).

13959649 is a wasteful number, since it uses less digits than its factorization.

13959649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2748 (or 2737 counting only the distinct ones).

The product of its digits is 262440, while the sum is 46.

The square root of 13959649 is about 3736.2613666605. The cubic root of 13959649 is about 240.7824520514.

The spelling of 13959649 in words is "thirteen million, nine hundred fifty-nine thousand, six hundred forty-nine".