13959641 has 4 divisors (see below), whose sum is σ = 14409984. Its totient is φ = 13509300.

The previous prime is 13959629. The next prime is 13959653. The reversal of 13959641 is 14695931.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14695931 = 1663 ⋅8837.

It is an interprime number because it is at equal distance from previous prime (13959629) and next prime (13959653).

It is a cyclic number.

It is not a de Polignac number, because 13959641 - 2²² = 9765337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13959595 and 13959604.

It is not an unprimeable number, because it can be changed into a prime (13959691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225125 + ... + 225186.

It is an arithmetic number, because the mean of its divisors is an integer number (3602496).

Almost surely, 2^13959641 is an apocalyptic number.

It is an amenable number.

13959641 is a deficient number, since it is larger than the sum of its proper divisors (450343).

13959641 is an equidigital number, since it uses as much as digits as its factorization.

13959641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450342.

The product of its digits is 29160, while the sum is 38.

The square root of 13959641 is about 3736.2602960715. The cubic root of 13959641 is about 240.7824060555.

The spelling of 13959641 in words is "thirteen million, nine hundred fifty-nine thousand, six hundred forty-one".