12798261 has 18 divisors (see below), whose sum is σ = 21505302. Its totient is φ = 7313040.

The previous prime is 12798259. The next prime is 12798283. The reversal of 12798261 is 16289721.

It can be written as a sum of positive squares in only one way, i.e., 12744900 + 53361 = 3570^2 + 231^2 .

It is not a de Polignac number, because 12798261 - 2¹ = 12798259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12798661) 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 17 ways as a sum of consecutive naturals, for example, 14070 + ... + 14951.

It is an arithmetic number, because the mean of its divisors is an integer number (1194739).

Almost surely, 2^12798261 is an apocalyptic number.

It is an amenable number.

12798261 is a deficient number, since it is larger than the sum of its proper divisors (8707041).

12798261 is a wasteful number, since it uses less digits than its factorization.

12798261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29041 (or 29031 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 12798261 is about 3577.4657231062. The cubic root of 12798261 is about 233.9108251047.

The spelling of 12798261 in words is "twelve million, seven hundred ninety-eight thousand, two hundred sixty-one".