13394641 has 4 divisors (see below), whose sum is σ = 14425012. Its totient is φ = 12364272.

The previous prime is 13394617. The next prime is 13394651. The reversal of 13394641 is 14649331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 863041 + 12531600 = 929^2 + 3540^2 .

It is a cyclic number.

It is not a de Polignac number, because 13394641 - 2⁵ = 13394609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13394611) 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, 515166 + ... + 515191.

It is an arithmetic number, because the mean of its divisors is an integer number (3606253).

Almost surely, 2^13394641 is an apocalyptic number.

It is an amenable number.

13394641 is a deficient number, since it is larger than the sum of its proper divisors (1030371).

13394641 is a wasteful number, since it uses less digits than its factorization.

13394641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030370.

The product of its digits is 7776, while the sum is 31.

The square root of 13394641 is about 3659.8689867262. The cubic root of 13394641 is about 237.4891060562.

The spelling of 13394641 in words is "thirteen million, three hundred ninety-four thousand, six hundred forty-one".