3126869 has 2 divisors, whose sum is σ = 3126870. Its totient is φ = 3126868.

The previous prime is 3126857. The next prime is 3126881. The reversal of 3126869 is 9686213.

It is a balanced prime because it is at equal distance from previous prime (3126857) and next prime (3126881).

It can be written as a sum of positive squares in only one way, i.e., 2845969 + 280900 = 1687^2 + 530^2 .

It is an emirp because it is prime and its reverse (9686213) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3126869 is a prime.

It is a super-2 number, since 2×3126869² = 19554619486322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3126269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1563434 + 1563435.

It is an arithmetic number, because the mean of its divisors is an integer number (1563435).

Almost surely, 2^3126869 is an apocalyptic number.

It is an amenable number.

3126869 is a deficient number, since it is larger than the sum of its proper divisors (1).

3126869 is an equidigital number, since it uses as much as digits as its factorization.

3126869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 35.

The square root of 3126869 is about 1768.2955069784. The cubic root of 3126869 is about 146.2300277107.

The spelling of 3126869 in words is "three million, one hundred twenty-six thousand, eight hundred sixty-nine".