13678851 has 8 divisors (see below), whose sum is σ = 18370240. Its totient is φ = 9053352.

The previous prime is 13678837. The next prime is 13678853. The reversal of 13678851 is 15887631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13678851 - 2⁷ = 13678723 is a prime.

It is a super-2 number, since 2×13678851² = 374221929360402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13678853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15985 + ... + 16818.

It is an arithmetic number, because the mean of its divisors is an integer number (2296280).

Almost surely, 2^13678851 is an apocalyptic number.

13678851 is a deficient number, since it is larger than the sum of its proper divisors (4691389).

13678851 is a wasteful number, since it uses less digits than its factorization.

13678851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32945.

The product of its digits is 40320, while the sum is 39.

The square root of 13678851 is about 3698.4930715090. The cubic root of 13678851 is about 239.1570602127.

It can be divided in two parts, 136 and 78851, that added together give a palindrome (78987).

The spelling of 13678851 in words is "thirteen million, six hundred seventy-eight thousand, eight hundred fifty-one".