650803728 has 40 divisors (see below), whose sum is σ = 1684901088. Its totient is φ = 216462592.

The previous prime is 650803723. The next prime is 650803759. The reversal of 650803728 is 827308056.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (650803723) 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, 7900 + ... + 36932.

Almost surely, 2^650803728 is an apocalyptic number.

It is an amenable number.

650803728 is an abundant number, since it is smaller than the sum of its proper divisors (1034097360).

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

650803728 is a wasteful number, since it uses less digits than its factorization.

650803728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29511 (or 29505 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 650803728 is about 25510.8551013093. The cubic root of 650803728 is about 866.5959945002.

The spelling of 650803728 in words is "six hundred fifty million, eight hundred three thousand, seven hundred twenty-eight".