609930811 has 16 divisors (see below), whose sum is σ = 738777024. Its totient is φ = 491572224.

The previous prime is 609930809. The next prime is 609930833. The reversal of 609930811 is 118039906.

It is a cyclic number.

It is not a de Polignac number, because 609930811 - 2¹ = 609930809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (609930851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175951 + ... + 179383.

It is an arithmetic number, because the mean of its divisors is an integer number (46173564).

Almost surely, 2^609930811 is an apocalyptic number.

609930811 is a deficient number, since it is larger than the sum of its proper divisors (128846213).

609930811 is a wasteful number, since it uses less digits than its factorization.

609930811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4950.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 609930811 is about 24696.7773403738. Note that the first 3 decimals coincide. The cubic root of 609930811 is about 848.0605427842.

The spelling of 609930811 in words is "six hundred nine million, nine hundred thirty thousand, eight hundred eleven".