650549317 has 4 divisors (see below), whose sum is σ = 709690176. Its totient is φ = 591408460.

The previous prime is 650549309. The next prime is 650549351. The reversal of 650549317 is 713945056.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 650549317 - 2³ = 650549309 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 650549317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650549377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29570413 + ... + 29570434.

It is an arithmetic number, because the mean of its divisors is an integer number (177422544).

Almost surely, 2^650549317 is an apocalyptic number.

It is an amenable number.

650549317 is a deficient number, since it is larger than the sum of its proper divisors (59140859).

650549317 is a wasteful number, since it uses less digits than its factorization.

650549317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59140858.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 650549317 is about 25505.8682855534. The cubic root of 650549317 is about 866.4830570768.

The spelling of 650549317 in words is "six hundred fifty million, five hundred forty-nine thousand, three hundred seventeen".