12782953 has 4 divisors (see below), whose sum is σ = 13455760. Its totient is φ = 12110148.

The previous prime is 12782947. The next prime is 12782983. The reversal of 12782953 is 35928721.

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, and also an emirpimes, since its reverse is a distinct semiprime: 35928721 = 31 ⋅1158991.

It is a cyclic number.

It is not a de Polignac number, because 12782953 - 2⁵ = 12782921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12782933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336375 + ... + 336412.

It is an arithmetic number, because the mean of its divisors is an integer number (3363940).

Almost surely, 2^12782953 is an apocalyptic number.

It is an amenable number.

12782953 is a deficient number, since it is larger than the sum of its proper divisors (672807).

12782953 is an equidigital number, since it uses as much as digits as its factorization.

12782953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672806.

The product of its digits is 30240, while the sum is 37.

The square root of 12782953 is about 3575.3255795801. The cubic root of 12782953 is about 233.8175276510.

The spelling of 12782953 in words is "twelve million, seven hundred eighty-two thousand, nine hundred fifty-three".