13421853 has 24 divisors (see below), whose sum is σ = 20317440. Its totient is φ = 8527680.

The previous prime is 13421843. The next prime is 13421869. The reversal of 13421853 is 35812431.

It is a happy number.

It is not a de Polignac number, because 13421853 - 2¹² = 13417757 is a prime.

It is a super-2 number, since 2×13421853² = 360292275907218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13421813) 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 23 ways as a sum of consecutive naturals, for example, 20038 + ... + 20696.

It is an arithmetic number, because the mean of its divisors is an integer number (846560).

Almost surely, 2^13421853 is an apocalyptic number.

It is an amenable number.

13421853 is a deficient number, since it is larger than the sum of its proper divisors (6895587).

13421853 is a wasteful number, since it uses less digits than its factorization.

13421853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769 (or 766 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 13421853 is about 3663.5847199157. The cubic root of 13421853 is about 237.6498216273.

The spelling of 13421853 in words is "thirteen million, four hundred twenty-one thousand, eight hundred fifty-three".