650390069 has 16 divisors (see below), whose sum is σ = 758565120. Its totient is φ = 546134400.

The previous prime is 650390057. The next prime is 650390071. The reversal of 650390069 is 960093056.

It is not a de Polignac number, because 650390069 - 2²⁴ = 633612853 is a prime.

It is a super-2 number, since 2×650390069² = 846014483707649522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650399069) 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 15 ways as a sum of consecutive naturals, for example, 72947 + ... + 81375.

It is an arithmetic number, because the mean of its divisors is an integer number (47410320).

Almost surely, 2^650390069 is an apocalyptic number.

It is an amenable number.

650390069 is a deficient number, since it is larger than the sum of its proper divisors (108175051).

650390069 is a wasteful number, since it uses less digits than its factorization.

650390069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8660.

The product of its (nonzero) digits is 43740, while the sum is 38.

The square root of 650390069 is about 25502.7463030945. The cubic root of 650390069 is about 866.4123491632.

The spelling of 650390069 in words is "six hundred fifty million, three hundred ninety thousand, sixty-nine".