3622609 has 2 divisors, whose sum is σ = 3622610. Its totient is φ = 3622608.

The previous prime is 3622601. The next prime is 3622631. The reversal of 3622609 is 9062263.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3534400 + 88209 = 1880^2 + 297^2 .

It is a cyclic number.

It is not a de Polignac number, because 3622609 - 2³ = 3622601 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3622601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1811304 + 1811305.

It is an arithmetic number, because the mean of its divisors is an integer number (1811305).

Almost surely, 2^3622609 is an apocalyptic number.

It is an amenable number.

3622609 is a deficient number, since it is larger than the sum of its proper divisors (1).

3622609 is an equidigital number, since it uses as much as digits as its factorization.

3622609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 3622609 is about 1903.3152655301. The cubic root of 3622609 is about 153.5820595592.

The spelling of 3622609 in words is "three million, six hundred twenty-two thousand, six hundred nine".