7900609 has 2 divisors, whose sum is σ = 7900610. Its totient is φ = 7900608.

The previous prime is 7900583. The next prime is 7900663. The reversal of 7900609 is 9060097.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5276209 + 2624400 = 2297^2 + 1620^2 .

It is a cyclic number.

It is not a de Polignac number, because 7900609 - 2⁷ = 7900481 is a prime.

It is a Chen prime.

7900609 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (7900679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3950304 + 3950305.

It is an arithmetic number, because the mean of its divisors is an integer number (3950305).

Almost surely, 2^7900609 is an apocalyptic number.

It is an amenable number.

7900609 is a deficient number, since it is larger than the sum of its proper divisors (1).

7900609 is an equidigital number, since it uses as much as digits as its factorization.

7900609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 7900609 is about 2810.8021986614. The cubic root of 7900609 is about 199.1682877346.

The spelling of 7900609 in words is "seven million, nine hundred thousand, six hundred nine".