13953813 has 8 divisors (see below), whose sum is σ = 19205376. Its totient is φ = 9002400.

The previous prime is 13953803. The next prime is 13953851. The reversal of 13953813 is 31835931.

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

It is not a de Polignac number, because 13953813 - 2¹⁷ = 13822741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13953803) 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 7 ways as a sum of consecutive naturals, for example, 74928 + ... + 75113.

It is an arithmetic number, because the mean of its divisors is an integer number (2400672).

Almost surely, 2^13953813 is an apocalyptic number.

It is an amenable number.

13953813 is a deficient number, since it is larger than the sum of its proper divisors (5251563).

13953813 is a wasteful number, since it uses less digits than its factorization.

13953813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150075.

The product of its digits is 9720, while the sum is 33.

The square root of 13953813 is about 3735.4802904044. The cubic root of 13953813 is about 240.7488933696.

It can be divided in two parts, 1395 and 3813, that multiplied together give a palindrome (5319135).

The spelling of 13953813 in words is "thirteen million, nine hundred fifty-three thousand, eight hundred thirteen".