13863804 has 12 divisors (see below), whose sum is σ = 32348904. Its totient is φ = 4621264.

The previous prime is 13863799. The next prime is 13863907. The reversal of 13863804 is 40836831.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×13863804² = 384410122700832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 577647 + ... + 577670.

It is an arithmetic number, because the mean of its divisors is an integer number (2695742).

Almost surely, 2^13863804 is an apocalyptic number.

It is an amenable number.

13863804 is an abundant number, since it is smaller than the sum of its proper divisors (18485100).

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

13863804 is a wasteful number, since it uses less digits than its factorization.

13863804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155324 (or 1155322 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 13863804 is about 3723.4129505066. The cubic root of 13863804 is about 240.2301264925.

The spelling of 13863804 in words is "thirteen million, eight hundred sixty-three thousand, eight hundred four".