650894537 has 4 divisors (see below), whose sum is σ = 663175620. Its totient is φ = 638613456.

The previous prime is 650894443. The next prime is 650894539. The reversal of 650894537 is 735498056.

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 429152656 + 221741881 = 20716^2 + 14891^2 .

It is a cyclic number.

It is not a de Polignac number, because 650894537 - 2¹⁰ = 650893513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 650894491 and 650894500.

It is not an unprimeable number, because it can be changed into a prime (650894539) 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, 6140462 + ... + 6140567.

It is an arithmetic number, because the mean of its divisors is an integer number (165793905).

Almost surely, 2^650894537 is an apocalyptic number.

It is an amenable number.

650894537 is a deficient number, since it is larger than the sum of its proper divisors (12281083).

650894537 is a wasteful number, since it uses less digits than its factorization.

650894537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12281082.

The product of its (nonzero) digits is 907200, while the sum is 47.

The square root of 650894537 is about 25512.6348502071. The cubic root of 650894537 is about 866.6362990510.

The spelling of 650894537 in words is "six hundred fifty million, eight hundred ninety-four thousand, five hundred thirty-seven".