13869783 has 12 divisors (see below), whose sum is σ = 20576088. Its totient is φ = 8996400.

The previous prime is 13869769. The next prime is 13869799. The reversal of 13869783 is 38796831.

It is a happy number.

It is not a de Polignac number, because 13869783 - 2⁶ = 13869719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13869283) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20493 + ... + 21158.

It is an arithmetic number, because the mean of its divisors is an integer number (1714674).

Almost surely, 2^13869783 is an apocalyptic number.

13869783 is a deficient number, since it is larger than the sum of its proper divisors (6706305).

13869783 is a wasteful number, since it uses less digits than its factorization.

13869783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41694 (or 41691 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 13869783 is about 3724.2157563707. The cubic root of 13869783 is about 240.2646559645.

The spelling of 13869783 in words is "thirteen million, eight hundred sixty-nine thousand, seven hundred eighty-three".