13853870 has 8 divisors (see below), whose sum is σ = 24936984. Its totient is φ = 5541544.

The previous prime is 13853821. The next prime is 13853881. The reversal of 13853870 is 7835831.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13853870.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 692684 + ... + 692703.

It is an arithmetic number, because the mean of its divisors is an integer number (3117123).

Almost surely, 2^13853870 is an apocalyptic number.

13853870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13853870 is a deficient number, since it is larger than the sum of its proper divisors (11083114).

13853870 is a wasteful number, since it uses less digits than its factorization.

13853870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385394.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 13853870 is about 3722.0787202852. The cubic root of 13853870 is about 240.1727344449.

The spelling of 13853870 in words is "thirteen million, eight hundred fifty-three thousand, eight hundred seventy".