650290693 has 16 divisors (see below), whose sum is σ = 732639600. Its totient is φ = 573027840.

The previous prime is 650290679. The next prime is 650290717. The reversal of 650290693 is 396092056.

It can be written as a sum of positive squares in 8 ways, for example, as 26440164 + 623850529 = 5142^2 + 24977^2 .

It is a cyclic number.

It is not a de Polignac number, because 650290693 - 2²⁹ = 113419781 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 (650290093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23863 + ... + 43243.

It is an arithmetic number, because the mean of its divisors is an integer number (45789975).

Almost surely, 2^650290693 is an apocalyptic number.

It is an amenable number.

650290693 is a deficient number, since it is larger than the sum of its proper divisors (82348907).

650290693 is a wasteful number, since it uses less digits than its factorization.

650290693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19512.

The product of its (nonzero) digits is 87480, while the sum is 40.

The square root of 650290693 is about 25500.7978894779. The cubic root of 650290693 is about 866.3682192463.

The spelling of 650290693 in words is "six hundred fifty million, two hundred ninety thousand, six hundred ninety-three".