3706609 has 2 divisors, whose sum is σ = 3706610. Its totient is φ = 3706608.

The previous prime is 3706529. The next prime is 3706621. The reversal of 3706609 is 9066073.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3459600 + 247009 = 1860^2 + 497^2 .

It is a cyclic number.

It is not a de Polignac number, because 3706609 - 2⁹ = 3706097 is a prime.

It is not a weakly prime, because it can be changed into another prime (3706649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1853304 + 1853305.

It is an arithmetic number, because the mean of its divisors is an integer number (1853305).

Almost surely, 2^3706609 is an apocalyptic number.

It is an amenable number.

3706609 is a deficient number, since it is larger than the sum of its proper divisors (1).

3706609 is an equidigital number, since it uses as much as digits as its factorization.

3706609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 3706609 is about 1925.2555674507. The cubic root of 3706609 is about 154.7600727861.

The spelling of 3706609 in words is "three million, seven hundred six thousand, six hundred nine".