13864172 has 12 divisors (see below), whose sum is σ = 27728400. Its totient is φ = 5941776.

The previous prime is 13864171. The next prime is 13864219. The reversal of 13864172 is 27146831.

13864172 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (13864171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247547 + ... + 247602.

It is an arithmetic number, because the mean of its divisors is an integer number (2310700).

Almost surely, 2^13864172 is an apocalyptic number.

It is an amenable number.

13864172 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.

13864172 is a wasteful number, since it uses less digits than its factorization.

13864172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495160 (or 495158 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 13864172 is about 3723.4623672061. The cubic root of 13864172 is about 240.2322520252.

It can be divided in two parts, 138 and 64172, that multiplied together give a triangular number (8855736 = T₄₂₀₈).

The spelling of 13864172 in words is "thirteen million, eight hundred sixty-four thousand, one hundred seventy-two".