12798507 has 4 divisors (see below), whose sum is σ = 17064680. Its totient is φ = 8532336.

The previous prime is 12798491. The next prime is 12798509. The reversal of 12798507 is 70589721.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12798507 - 2⁴ = 12798491 is a prime.

It is the 3578-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12798509) by changing a digit.

It is a nontrivial repunit in base 3577.

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, 2133082 + ... + 2133087.

It is an arithmetic number, because the mean of its divisors is an integer number (4266170).

Almost surely, 2^12798507 is an apocalyptic number.

12798507 is a deficient number, since it is larger than the sum of its proper divisors (4266173).

12798507 is an equidigital number, since it uses as much as digits as its factorization.

12798507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4266172.

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 12798507 is about 3577.5001048218. The cubic root of 12798507 is about 233.9123237899.

The spelling of 12798507 in words is "twelve million, seven hundred ninety-eight thousand, five hundred seven".