12279798 has 24 divisors (see below), whose sum is σ = 26749008. Its totient is φ = 4071312.

The previous prime is 12279793. The next prime is 12279803. The reversal of 12279798 is 89797221.

It is an interprime number because it is at equal distance from previous prime (12279793) and next prime (12279803).

It is a super-3 number, since 3×12279798³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12279793) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1815 + ... + 5277.

It is an arithmetic number, because the mean of its divisors is an integer number (1114542).

Almost surely, 2^12279798 is an apocalyptic number.

12279798 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12279798 is an abundant number, since it is smaller than the sum of its proper divisors (14469210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12279798 is a wasteful number, since it uses less digits than its factorization.

12279798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3668 (or 3665 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 12279798 is about 3504.2542715962. The cubic root of 12279798 is about 230.7085772392.

It can be divided in two parts, 1227 and 9798, that added together give a square (11025 = 105²).

The spelling of 12279798 in words is "twelve million, two hundred seventy-nine thousand, seven hundred ninety-eight".