13773172 has 12 divisors (see below), whose sum is σ = 27546400. Its totient is φ = 5902776.

The previous prime is 13773169. The next prime is 13773187. The reversal of 13773172 is 27137731.

13773172 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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, 245922 + ... + 245977.

Almost surely, 2^13773172 is an apocalyptic number.

It is an amenable number.

13773172 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13773172 is a wasteful number, since it uses less digits than its factorization.

13773172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491910 (or 491908 counting only the distinct ones).

The product of its digits is 6174, while the sum is 31.

The square root of 13773172 is about 3711.2224401132. Note that the first 3 decimals coincide. The cubic root of 13773172 is about 239.7054952416.

The spelling of 13773172 in words is "thirteen million, seven hundred seventy-three thousand, one hundred seventy-two".