13873487 has 4 divisors (see below), whose sum is σ = 13882896. Its totient is φ = 13864080.

The previous prime is 13873481. The next prime is 13873493. The reversal of 13873487 is 78437831.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (13873481) and next prime (13873493).

It is a cyclic number.

It is not a de Polignac number, because 13873487 - 2⁶ = 13873423 is a prime.

It is a super-3 number, since 3×13873487³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

Its product of digits (112896) is a multiple of the sum of its prime divisors (9408).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13873481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1958 + ... + 5619.

It is an arithmetic number, because the mean of its divisors is an integer number (3470724).

Almost surely, 2^13873487 is an apocalyptic number.

13873487 is a deficient number, since it is larger than the sum of its proper divisors (9409).

13873487 is an equidigital number, since it uses as much as digits as its factorization.

13873487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9408.

The product of its digits is 112896, while the sum is 41.

The square root of 13873487 is about 3724.7130090787. The cubic root of 13873487 is about 240.2860420495.

The spelling of 13873487 in words is "thirteen million, eight hundred seventy-three thousand, four hundred eighty-seven".