13905673 has 8 divisors (see below), whose sum is σ = 14351688. Its totient is φ = 13463424.

The previous prime is 13905607. The next prime is 13905707. The reversal of 13905673 is 37650931.

It can be written as a sum of positive squares in 4 ways, for example, as 3485689 + 10419984 = 1867^2 + 3228^2 .

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 13905673 - 2²¹ = 11808521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13909673) 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 7 ways as a sum of consecutive naturals, for example, 7815 + ... + 9427.

It is an arithmetic number, because the mean of its divisors is an integer number (1793961).

Almost surely, 2^13905673 is an apocalyptic number.

It is an amenable number.

13905673 is a deficient number, since it is larger than the sum of its proper divisors (446015).

13905673 is a wasteful number, since it uses less digits than its factorization.

13905673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1883.

The product of its (nonzero) digits is 17010, while the sum is 34.

The square root of 13905673 is about 3729.0311074058. The cubic root of 13905673 is about 240.4717169150.

It can be divided in two parts, 139056 and 73, that added together give a square (139129 = 373²).

The spelling of 13905673 in words is "thirteen million, nine hundred five thousand, six hundred seventy-three".