650606239 has 4 divisors (see below), whose sum is σ = 650850880. Its totient is φ = 650361600.

The previous prime is 650606237. The next prime is 650606249. The reversal of 650606239 is 932606056.

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 650606239 - 2¹ = 650606237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 650606198 and 650606207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650606233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118287 + ... + 123664.

It is an arithmetic number, because the mean of its divisors is an integer number (162712720).

Almost surely, 2^650606239 is an apocalyptic number.

650606239 is a deficient number, since it is larger than the sum of its proper divisors (244641).

650606239 is a wasteful number, since it uses less digits than its factorization.

650606239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244640.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 650606239 is about 25506.9841220008. The cubic root of 650606239 is about 866.5083282893.

The spelling of 650606239 in words is "six hundred fifty million, six hundred six thousand, two hundred thirty-nine".