12278799 has 12 divisors (see below), whose sum is σ = 19100536. Its totient is φ = 7556112.

The previous prime is 12278789. The next prime is 12278801. The reversal of 12278799 is 99787221.

It is not a de Polignac number, because 12278799 - 2⁵ = 12278767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12278729) 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, 52357 + ... + 52590.

Almost surely, 2^12278799 is an apocalyptic number.

12278799 is a deficient number, since it is larger than the sum of its proper divisors (6821737).

12278799 is a wasteful number, since it uses less digits than its factorization.

12278799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104966 (or 104963 counting only the distinct ones).

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

The square root of 12278799 is about 3504.1117276708. Note that the first 3 decimals coincide. The cubic root of 12278799 is about 230.7023207813.

The spelling of 12278799 in words is "twelve million, two hundred seventy-eight thousand, seven hundred ninety-nine".