13889463 has 16 divisors (see below), whose sum is σ = 21895680. Its totient is φ = 7662816.

The previous prime is 13889461. The next prime is 13889483. The reversal of 13889463 is 36498831.

It is a happy number.

It is not a de Polignac number, because 13889463 - 2¹ = 13889461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13889461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10795 + ... + 12012.

It is an arithmetic number, because the mean of its divisors is an integer number (1368480).

Almost surely, 2^13889463 is an apocalyptic number.

13889463 is a deficient number, since it is larger than the sum of its proper divisors (8006217).

13889463 is a wasteful number, since it uses less digits than its factorization.

13889463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22846.

The product of its digits is 124416, while the sum is 42.

The square root of 13889463 is about 3726.8569867920. The cubic root of 13889463 is about 240.3782403849.

The spelling of 13889463 in words is "thirteen million, eight hundred eighty-nine thousand, four hundred sixty-three".