13486819 has 4 divisors (see below), whose sum is σ = 13504744. Its totient is φ = 13468896.

The previous prime is 13486813. The next prime is 13486841. The reversal of 13486819 is 91868431.

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

It is a cyclic number.

It is not a de Polignac number, because 13486819 - 2⁵ = 13486787 is a prime.

It is a super-2 number, since 2×13486819² = 363788573477522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13486813) 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, 7782 + ... + 9355.

It is an arithmetic number, because the mean of its divisors is an integer number (3376186).

Almost surely, 2^13486819 is an apocalyptic number.

13486819 is a deficient number, since it is larger than the sum of its proper divisors (17925).

13486819 is an equidigital number, since it uses as much as digits as its factorization.

13486819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17924.

The product of its digits is 41472, while the sum is 40.

The square root of 13486819 is about 3672.4404692248. The cubic root of 13486819 is about 238.0326379928.

The spelling of 13486819 in words is "thirteen million, four hundred eighty-six thousand, eight hundred nineteen".