12803953 has 4 divisors (see below), whose sum is σ = 12841200. Its totient is φ = 12766708.

The previous prime is 12803951. The next prime is 12803963. The reversal of 12803953 is 35930821.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12803953 - 2¹ = 12803951 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12803951) 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, 18103 + ... + 18796.

It is an arithmetic number, because the mean of its divisors is an integer number (3210300).

Almost surely, 2^12803953 is an apocalyptic number.

It is an amenable number.

12803953 is a deficient number, since it is larger than the sum of its proper divisors (37247).

12803953 is an equidigital number, since it uses as much as digits as its factorization.

12803953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37246.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 12803953 is about 3578.2611698980. The cubic root of 12803953 is about 233.9454970830.

The spelling of 12803953 in words is "twelve million, eight hundred three thousand, nine hundred fifty-three".