609907 has 2 divisors, whose sum is σ = 609908. Its totient is φ = 609906.

The previous prime is 609887. The next prime is 609911. The reversal of 609907 is 709906.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 609907 - 2⁷ = 609779 is a prime.

It is not a weakly prime, because it can be changed into another prime (609997) 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, 304953 + 304954.

It is an arithmetic number, because the mean of its divisors is an integer number (304954).

2⁶⁰⁹⁹⁰⁷ is an apocalyptic number.

609907 is a deficient number, since it is larger than the sum of its proper divisors (1).

609907 is an equidigital number, since it uses as much as digits as its factorization.

609907 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 609907 is about 780.9654281721. The cubic root of 609907 is about 84.8049506870.

Subtracting 609907 from its reverse (709906), we obtain a palindrome (99999).

The spelling of 609907 in words is "six hundred nine thousand, nine hundred seven".