609968633 has 2 divisors, whose sum is σ = 609968634. Its totient is φ = 609968632.

The previous prime is 609968627. The next prime is 609968641. The reversal of 609968633 is 336869906.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 599907049 + 10061584 = 24493^2 + 3172^2 .

It is a cyclic number.

It is not a de Polignac number, because 609968633 - 2⁸ = 609968377 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (609968663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304984316 + 304984317.

It is an arithmetic number, because the mean of its divisors is an integer number (304984317).

Almost surely, 2^609968633 is an apocalyptic number.

It is an amenable number.

609968633 is a deficient number, since it is larger than the sum of its proper divisors (1).

609968633 is an equidigital number, since it uses as much as digits as its factorization.

609968633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1259712, while the sum is 50.

The square root of 609968633 is about 24697.5430559398. The cubic root of 609968633 is about 848.0780719216.

The spelling of 609968633 in words is "six hundred nine million, nine hundred sixty-eight thousand, six hundred thirty-three".