3126609 has 6 divisors (see below), whose sum is σ = 4516226. Its totient is φ = 2084400.

The previous prime is 3126559. The next prime is 3126653. The reversal of 3126609 is 9066213.

It is a happy number.

3126609 is a `hidden beast` number, since 31 + 26 + 609 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2985984 + 140625 = 1728^2 + 375^2 .

It is not a de Polignac number, because 3126609 - 2⁸ = 3126353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3126679) 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 5 ways as a sum of consecutive naturals, for example, 173692 + ... + 173709.

Almost surely, 2^3126609 is an apocalyptic number.

It is an amenable number.

3126609 is a deficient number, since it is larger than the sum of its proper divisors (1389617).

3126609 is a wasteful number, since it uses less digits than its factorization.

3126609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347407 (or 347404 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 3126609 is about 1768.2219883261. The cubic root of 3126609 is about 146.2259745763.

The spelling of 3126609 in words is "three million, one hundred twenty-six thousand, six hundred nine".