13773401 has 4 divisors (see below), whose sum is σ = 13827252. Its totient is φ = 13719552.

The previous prime is 13773379. The next prime is 13773427. The reversal of 13773401 is 10437731.

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 10883401 + 2890000 = 3299^2 + 1700^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13773401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13773101) 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, 26540 + ... + 27053.

It is an arithmetic number, because the mean of its divisors is an integer number (3456813).

Almost surely, 2^13773401 is an apocalyptic number.

It is an amenable number.

13773401 is a deficient number, since it is larger than the sum of its proper divisors (53851).

13773401 is an equidigital number, since it uses as much as digits as its factorization.

13773401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53850.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 13773401 is about 3711.2532923529. The cubic root of 13773401 is about 239.7068237241.

The spelling of 13773401 in words is "thirteen million, seven hundred seventy-three thousand, four hundred one".