650879613 has 6 divisors (see below), whose sum is σ = 940159454. Its totient is φ = 433919736.

The previous prime is 650879533. The next prime is 650879623. The reversal of 650879613 is 316978056.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 510172569 + 140707044 = 22587^2 + 11862^2 .

It is not a de Polignac number, because 650879613 - 2¹⁰ = 650878589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650879623) 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 5 ways as a sum of consecutive naturals, for example, 36159970 + ... + 36159987.

Almost surely, 2^650879613 is an apocalyptic number.

It is an amenable number.

650879613 is a deficient number, since it is larger than the sum of its proper divisors (289279841).

650879613 is a wasteful number, since it uses less digits than its factorization.

650879613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72319963 (or 72319960 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 650879613 is about 25512.3423660000. The cubic root of 650879613 is about 866.6296754593.

The spelling of 650879613 in words is "six hundred fifty million, eight hundred seventy-nine thousand, six hundred thirteen".