12878039 has 2 divisors, whose sum is σ = 12878040. Its totient is φ = 12878038.

The previous prime is 12878017. The next prime is 12878053. The reversal of 12878039 is 93087821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12878039 - 2¹² = 12873943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12877993 and 12878011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12878069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6439019 + 6439020.

It is an arithmetic number, because the mean of its divisors is an integer number (6439020).

Almost surely, 2^12878039 is an apocalyptic number.

12878039 is a deficient number, since it is larger than the sum of its proper divisors (1).

12878039 is an equidigital number, since it uses as much as digits as its factorization.

12878039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 12878039 is about 3588.5984729418. The cubic root of 12878039 is about 234.3958466554.

The spelling of 12878039 in words is "twelve million, eight hundred seventy-eight thousand, thirty-nine".