7690609 has 2 divisors, whose sum is σ = 7690610. Its totient is φ = 7690608.

The previous prime is 7690607. The next prime is 7690619. The reversal of 7690609 is 9060967.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7306209 + 384400 = 2703^2 + 620^2 .

It is a cyclic number.

It is not a de Polignac number, because 7690609 - 2¹ = 7690607 is a prime.

Together with 7690607, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (7690603) 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 as a sum of consecutive naturals, namely, 3845304 + 3845305.

It is an arithmetic number, because the mean of its divisors is an integer number (3845305).

Almost surely, 2^7690609 is an apocalyptic number.

It is an amenable number.

7690609 is a deficient number, since it is larger than the sum of its proper divisors (1).

7690609 is an equidigital number, since it uses as much as digits as its factorization.

7690609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 7690609 is about 2773.1947281069. The cubic root of 7690609 is about 197.3877715216.

The spelling of 7690609 in words is "seven million, six hundred ninety thousand, six hundred nine".