13463986 has 4 divisors (see below), whose sum is σ = 20195982. Its totient is φ = 6731992.

The previous prime is 13463971. The next prime is 13463987. The reversal of 13463986 is 68936431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68936431 = 167 ⋅412793.

It can be written as a sum of positive squares in only one way, i.e., 12425625 + 1038361 = 3525^2 + 1019^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (13463987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3365995 + ... + 3365998.

Almost surely, 2^13463986 is an apocalyptic number.

13463986 is a deficient number, since it is larger than the sum of its proper divisors (6731996).

13463986 is an equidigital number, since it uses as much as digits as its factorization.

13463986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6731995.

The product of its digits is 93312, while the sum is 40.

The square root of 13463986 is about 3669.3304566365. The cubic root of 13463986 is about 237.8982334496.

The spelling of 13463986 in words is "thirteen million, four hundred sixty-three thousand, nine hundred eighty-six".