609223968 has 72 divisors (see below), whose sum is σ = 1834406028. Its totient is φ = 191127552.

The previous prime is 609223963. The next prime is 609223969. The reversal of 609223968 is 869322906.

609223968 is a `hidden beast` number, since 609 + 2 + 2 + 39 + 6 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 481714704 + 127509264 = 21948^2 + 11292^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (609223963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57321 + ... + 67112.

Almost surely, 2^609223968 is an apocalyptic number.

609223968 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

609223968 is an abundant number, since it is smaller than the sum of its proper divisors (1225182060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

609223968 is a wasteful number, since it uses less digits than its factorization.

609223968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124466 (or 124455 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 609223968 is about 24682.4627620503. The cubic root of 609223968 is about 847.7328130589.

The spelling of 609223968 in words is "six hundred nine million, two hundred twenty-three thousand, nine hundred sixty-eight".