609443966 has 16 divisors (see below), whose sum is σ = 925207920. Its totient is φ = 301056960.

The previous prime is 609443953. The next prime is 609443977. The reversal of 609443966 is 669344906.

It is a self number, because there is not a number n which added to its sum of digits gives 609443966.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79586 + ... + 86906.

It is an arithmetic number, because the mean of its divisors is an integer number (57825495).

Almost surely, 2^609443966 is an apocalyptic number.

609443966 is a deficient number, since it is larger than the sum of its proper divisors (315763954).

609443966 is a wasteful number, since it uses less digits than its factorization.

609443966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7819.

The product of its (nonzero) digits is 839808, while the sum is 47.

The square root of 609443966 is about 24686.9189248071. The cubic root of 609443966 is about 847.8348429027.

The spelling of 609443966 in words is "six hundred nine million, four hundred forty-three thousand, nine hundred sixty-six".