12869749 has 2 divisors, whose sum is σ = 12869750. Its totient is φ = 12869748.

The previous prime is 12869713. The next prime is 12869807. The reversal of 12869749 is 94796821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7739524 + 5130225 = 2782^2 + 2265^2 .

It is a cyclic number.

It is not a de Polignac number, because 12869749 - 2⁹ = 12869237 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12869699 and 12869708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12869149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6434874 + 6434875.

It is an arithmetic number, because the mean of its divisors is an integer number (6434875).

Almost surely, 2^12869749 is an apocalyptic number.

It is an amenable number.

12869749 is a deficient number, since it is larger than the sum of its proper divisors (1).

12869749 is an equidigital number, since it uses as much as digits as its factorization.

12869749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 46.

The square root of 12869749 is about 3587.4432399691. The cubic root of 12869749 is about 234.3455398586.

The spelling of 12869749 in words is "twelve million, eight hundred sixty-nine thousand, seven hundred forty-nine".