650842417 has 4 divisors (see below), whose sum is σ = 664690176. Its totient is φ = 636994660.

The previous prime is 650842411. The next prime is 650842429. The reversal of 650842417 is 714248056.

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 650842417 - 2⁷ = 650842289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (650842411) 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, 6923809 + ... + 6923902.

It is an arithmetic number, because the mean of its divisors is an integer number (166172544).

Almost surely, 2^650842417 is an apocalyptic number.

It is an amenable number.

650842417 is a deficient number, since it is larger than the sum of its proper divisors (13847759).

650842417 is a wasteful number, since it uses less digits than its factorization.

650842417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13847758.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 650842417 is about 25511.6133750886. The cubic root of 650842417 is about 866.6131666350.

The spelling of 650842417 in words is "six hundred fifty million, eight hundred forty-two thousand, four hundred seventeen".