12789849 has 4 divisors (see below), whose sum is σ = 17053136. Its totient is φ = 8526564.

The previous prime is 12789823. The next prime is 12789857. The reversal of 12789849 is 94898721.

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 not a de Polignac number, because 12789849 - 2¹² = 12785753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12789798 and 12789807.

It is not an unprimeable number, because it can be changed into a prime (12789859) 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, 2131639 + ... + 2131644.

It is an arithmetic number, because the mean of its divisors is an integer number (4263284).

Almost surely, 2^12789849 is an apocalyptic number.

It is an amenable number.

12789849 is a deficient number, since it is larger than the sum of its proper divisors (4263287).

12789849 is an equidigital number, since it uses as much as digits as its factorization.

12789849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4263286.

The product of its digits is 290304, while the sum is 48.

The square root of 12789849 is about 3576.2898372475. The cubic root of 12789849 is about 233.8595658198.

The spelling of 12789849 in words is "twelve million, seven hundred eighty-nine thousand, eight hundred forty-nine".