650008693 has 4 divisors (see below), whose sum is σ = 654753420. Its totient is φ = 645263968.

The previous prime is 650008669. The next prime is 650008703. The reversal of 650008693 is 396800056.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 259274404 + 390734289 = 16102^2 + 19767^2 .

It is a cyclic number.

It is not a de Polignac number, because 650008693 - 2⁹ = 650008181 is a prime.

It is a super-2 number, since 2×650008693² = 845022601951136498, 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 (650008663) 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 3 ways as a sum of consecutive naturals, for example, 2372158 + ... + 2372431.

It is an arithmetic number, because the mean of its divisors is an integer number (163688355).

Almost surely, 2^650008693 is an apocalyptic number.

It is an amenable number.

650008693 is a deficient number, since it is larger than the sum of its proper divisors (4744727).

650008693 is a wasteful number, since it uses less digits than its factorization.

650008693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4744726.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 650008693 is about 25495.2680511502. The cubic root of 650008693 is about 866.2429669732.

The spelling of 650008693 in words is "six hundred fifty million, eight thousand, six hundred ninety-three".