609647099 has 2 divisors, whose sum is σ = 609647100. Its totient is φ = 609647098.

The previous prime is 609647021. The next prime is 609647107. The reversal of 609647099 is 990746906.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 609647099 - 2¹² = 609643003 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (609647399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304823549 + 304823550.

It is an arithmetic number, because the mean of its divisors is an integer number (304823550).

Almost surely, 2^609647099 is an apocalyptic number.

609647099 is a deficient number, since it is larger than the sum of its proper divisors (1).

609647099 is an equidigital number, since it uses as much as digits as its factorization.

609647099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 734832, while the sum is 50.

The square root of 609647099 is about 24691.0327649534. The cubic root of 609647099 is about 847.9290293600.

The spelling of 609647099 in words is "six hundred nine million, six hundred forty-seven thousand, ninety-nine".