13866463 has 4 divisors (see below), whose sum is σ = 14933128. Its totient is φ = 12799800.

The previous prime is 13866439. The next prime is 13866491. The reversal of 13866463 is 36466831.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13866463 - 2⁵ = 13866431 is a prime.

It is a super-2 number, since 2×13866463² = 384557592260738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13866763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533313 + ... + 533338.

It is an arithmetic number, because the mean of its divisors is an integer number (3733282).

Almost surely, 2^13866463 is an apocalyptic number.

13866463 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13866463 is a deficient number, since it is larger than the sum of its proper divisors (1066665).

13866463 is a wasteful number, since it uses less digits than its factorization.

13866463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066664.

The product of its digits is 62208, while the sum is 37.

The square root of 13866463 is about 3723.7699982679. The cubic root of 13866463 is about 240.2454837752.

The spelling of 13866463 in words is "thirteen million, eight hundred sixty-six thousand, four hundred sixty-three".