12726078 has 16 divisors (see below), whose sum is σ = 25487616. Its totient is φ = 4236120.

The previous prime is 12726073. The next prime is 12726083. The reversal of 12726078 is 87062721.

It is an interprime number because it is at equal distance from previous prime (12726073) and next prime (12726083).

It is a super-2 number, since 2×12726078² = 323906122524168, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12726073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6525 + ... + 8247.

It is an arithmetic number, because the mean of its divisors is an integer number (1592976).

Almost surely, 2^12726078 is an apocalyptic number.

12726078 is an abundant number, since it is smaller than the sum of its proper divisors (12761538).

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

12726078 is a wasteful number, since it uses less digits than its factorization.

12726078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2959.

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 12726078 is about 3567.3628915489. The cubic root of 12726078 is about 233.4702384779.

Adding to 12726078 its reverse (87062721), we get a palindrome (99788799).

The spelling of 12726078 in words is "twelve million, seven hundred twenty-six thousand, seventy-eight".