609780506 has 24 divisors (see below), whose sum is σ = 969443904. Its totient is φ = 287496720.

The previous prime is 609780449. The next prime is 609780541. The reversal of 609780506 is 605087906.

It is a happy number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 68111 + ... + 76541.

It is an arithmetic number, because the mean of its divisors is an integer number (40393496).

Almost surely, 2^609780506 is an apocalyptic number.

609780506 is a deficient number, since it is larger than the sum of its proper divisors (359663398).

609780506 is a wasteful number, since it uses less digits than its factorization.

609780506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8534 (or 8505 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 609780506 is about 24693.7341445153. The cubic root of 609780506 is about 847.9908746571.

The spelling of 609780506 in words is "six hundred nine million, seven hundred eighty thousand, five hundred six".