12759998 has 4 divisors (see below), whose sum is σ = 19140000. Its totient is φ = 6379998.

The previous prime is 12759997. The next prime is 12760021. The reversal of 12759998 is 89995721.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12759991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3189998 + ... + 3190001.

It is an arithmetic number, because the mean of its divisors is an integer number (4785000).

Almost surely, 2^12759998 is an apocalyptic number.

12759998 is a deficient number, since it is larger than the sum of its proper divisors (6380002).

12759998 is an equidigital number, since it uses as much as digits as its factorization.

12759998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6380001.

The product of its digits is 408240, while the sum is 50.

The square root of 12759998 is about 3572.1139399521. The cubic root of 12759998 is about 233.6774844408.

The spelling of 12759998 in words is "twelve million, seven hundred fifty-nine thousand, nine hundred ninety-eight".