12797505 has 24 divisors (see below), whose sum is σ = 25351872. Its totient is φ = 5850144.

The previous prime is 12797503. The next prime is 12797509. The reversal of 12797505 is 50579721.

It is not a de Polignac number, because 12797505 - 2¹ = 12797503 is a prime.

It is a super-2 number, since 2×12797505² = 327552268450050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12797505.

It is not an unprimeable number, because it can be changed into a prime (12797503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19999 + ... + 20628.

It is an arithmetic number, because the mean of its divisors is an integer number (1056328).

Almost surely, 2^12797505 is an apocalyptic number.

12797505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12797505 is a deficient number, since it is larger than the sum of its proper divisors (12554367).

12797505 is a wasteful number, since it uses less digits than its factorization.

12797505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40645 (or 40642 counting only the distinct ones).

The product of its (nonzero) digits is 22050, while the sum is 36.

The square root of 12797505 is about 3577.3600601561. The cubic root of 12797505 is about 233.9062192689.

The spelling of 12797505 in words is "twelve million, seven hundred ninety-seven thousand, five hundred five".