609972163 has 4 divisors (see below), whose sum is σ = 610222680. Its totient is φ = 609721648.

The previous prime is 609972137. The next prime is 609972173. The reversal of 609972163 is 361279906.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 609972163 - 2¹³ = 609963971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (609972113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121570 + ... + 126487.

It is an arithmetic number, because the mean of its divisors is an integer number (152555670).

Almost surely, 2^609972163 is an apocalyptic number.

609972163 is a deficient number, since it is larger than the sum of its proper divisors (250517).

609972163 is a wasteful number, since it uses less digits than its factorization.

609972163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250516.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 609972163 is about 24697.6145204350. The cubic root of 609972163 is about 848.0797079127.

The spelling of 609972163 in words is "six hundred nine million, nine hundred seventy-two thousand, one hundred sixty-three".