13486421 has 16 divisors (see below), whose sum is σ = 15240960. Its totient is φ = 11847360.

The previous prime is 13486411. The next prime is 13486427. The reversal of 13486421 is 12468431.

13486421 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13486421 - 2⁶ = 13486357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13486427) 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 in 15 ways as a sum of consecutive naturals, for example, 31076 + ... + 31506.

It is an arithmetic number, because the mean of its divisors is an integer number (952560).

Almost surely, 2^13486421 is an apocalyptic number.

It is an amenable number.

13486421 is a deficient number, since it is larger than the sum of its proper divisors (1754539).

13486421 is a wasteful number, since it uses less digits than its factorization.

13486421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556.

The product of its digits is 4608, while the sum is 29.

The square root of 13486421 is about 3672.3862814252. The cubic root of 13486421 is about 238.0302964986.

The spelling of 13486421 in words is "thirteen million, four hundred eighty-six thousand, four hundred twenty-one".