13873816 has 32 divisors (see below), whose sum is σ = 29152080. Its totient is φ = 6134400.

The previous prime is 13873799. The next prime is 13873823. The reversal of 13873816 is 61837831.

13873816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1126 + ... + 5386.

Almost surely, 2^13873816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13873816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14576040).

13873816 is an abundant number, since it is smaller than the sum of its proper divisors (15278264).

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

13873816 is a wasteful number, since it uses less digits than its factorization.

13873816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4315 (or 4311 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 13873816 is about 3724.7571732933. The cubic root of 13873816 is about 240.2879414394.

The spelling of 13873816 in words is "thirteen million, eight hundred seventy-three thousand, eight hundred sixteen".