13863812 has 6 divisors (see below), whose sum is σ = 24261678. Its totient is φ = 6931904.

The previous prime is 13863799. The next prime is 13863907. The reversal of 13863812 is 21836831.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13060996 + 802816 = 3614^2 + 896^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1732973 + ... + 1732980.

It is an arithmetic number, because the mean of its divisors is an integer number (4043613).

Almost surely, 2^13863812 is an apocalyptic number.

It is an amenable number.

13863812 is a deficient number, since it is larger than the sum of its proper divisors (10397866).

13863812 is a wasteful number, since it uses less digits than its factorization.

13863812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3465957 (or 3465955 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 13863812 is about 3723.4140247896. The cubic root of 13863812 is about 240.2301727001.

The spelling of 13863812 in words is "thirteen million, eight hundred sixty-three thousand, eight hundred twelve".