12279799 has 8 divisors (see below), whose sum is σ = 14096160. Its totient is φ = 10478976.

The previous prime is 12279793. The next prime is 12279803. The reversal of 12279799 is 99797221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12279799 - 2¹³ = 12271607 is a prime.

It is a super-4 number, since 4×12279799⁴ (a number of 29 digits) contains 4444 as substring.

It is a Duffinian number.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2134 + ... + 5395.

It is an arithmetic number, because the mean of its divisors is an integer number (1762020).

Almost surely, 2^12279799 is an apocalyptic number.

12279799 is a deficient number, since it is larger than the sum of its proper divisors (1816361).

12279799 is an equidigital number, since it uses as much as digits as its factorization.

12279799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7769.

The product of its digits is 142884, while the sum is 46.

The square root of 12279799 is about 3504.2544142799. The cubic root of 12279799 is about 230.7085835017.

It can be divided in two parts, 1227 and 9799, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 12279799 in words is "twelve million, two hundred seventy-nine thousand, seven hundred ninety-nine".