13678867 has 4 divisors (see below), whose sum is σ = 13722336. Its totient is φ = 13635400.

The previous prime is 13678853. The next prime is 13678891. The reversal of 13678867 is 76887631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76887631 = 83 ⋅926357.

It is a cyclic number.

It is not a de Polignac number, because 13678867 - 2¹⁵ = 13646099 is a prime.

It is a super-2 number, since 2×13678867² = 374222804807378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13678817) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 21259 + ... + 21892.

It is an arithmetic number, because the mean of its divisors is an integer number (3430584).

Almost surely, 2^13678867 is an apocalyptic number.

13678867 is a deficient number, since it is larger than the sum of its proper divisors (43469).

13678867 is an equidigital number, since it uses as much as digits as its factorization.

13678867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43468.

The product of its digits is 338688, while the sum is 46.

The square root of 13678867 is about 3698.4952345515. The cubic root of 13678867 is about 239.1571534591.

It can be divided in two parts, 136 and 78867, that added together give a triangular number (79003 = T₃₉₇).

The spelling of 13678867 in words is "thirteen million, six hundred seventy-eight thousand, eight hundred sixty-seven".