650400712 has 32 divisors (see below), whose sum is σ = 1345349880. Its totient is φ = 292861440.

The previous prime is 650400701. The next prime is 650400713. The reversal of 650400712 is 217004056.

It can be written as a sum of positive squares in 4 ways, for example, as 353665636 + 296735076 = 18806^2 + 17226^2 .

It is not an unprimeable number, because it can be changed into a prime (650400713) 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 7 ways as a sum of consecutive naturals, for example, 72003 + ... + 80530.

Almost surely, 2^650400712 is an apocalyptic number.

It is an amenable number.

650400712 is an abundant number, since it is smaller than the sum of its proper divisors (694949168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

650400712 is a wasteful number, since it uses less digits than its factorization.

650400712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152593 (or 152589 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 650400712 is about 25502.9549660427. The cubic root of 650400712 is about 866.4170751355.

Adding to 650400712 its reverse (217004056), we get a palindrome (867404768).

The spelling of 650400712 in words is "six hundred fifty million, four hundred thousand, seven hundred twelve".