13873647 has 16 divisors (see below), whose sum is σ = 19205120. Its totient is φ = 8899200.

The previous prime is 13873633. The next prime is 13873661. The reversal of 13873647 is 74637831.

It is an interprime number because it is at equal distance from previous prime (13873633) and next prime (13873661).

It is not a de Polignac number, because 13873647 - 2⁶ = 13873583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13873627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22104 + ... + 22722.

It is an arithmetic number, because the mean of its divisors is an integer number (1200320).

Almost surely, 2^13873647 is an apocalyptic number.

13873647 is a deficient number, since it is larger than the sum of its proper divisors (5331473).

13873647 is a wasteful number, since it uses less digits than its factorization.

13873647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894.

The product of its digits is 84672, while the sum is 39.

The square root of 13873647 is about 3724.7344871816. The cubic root of 13873647 is about 240.2869657687.

It can be divided in two parts, 138 and 73647, that multiplied together give a triangular number (10163286 = T₄₅₀₈).

The spelling of 13873647 in words is "thirteen million, eight hundred seventy-three thousand, six hundred forty-seven".