650819712 has 64 divisors (see below), whose sum is σ = 1731396960. Its totient is φ = 216606720.

The previous prime is 650819693. The next prime is 650819713. The reversal of 650819712 is 217918056.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (650819713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492012 + ... + 493332.

Almost surely, 2^650819712 is an apocalyptic number.

It is an amenable number.

650819712 is an abundant number, since it is smaller than the sum of its proper divisors (1080577248).

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

650819712 is a wasteful number, since it uses less digits than its factorization.

650819712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2621 (or 2609 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 39.

The square root of 650819712 is about 25511.1683777909. The cubic root of 650819712 is about 866.6030890903.

The spelling of 650819712 in words is "six hundred fifty million, eight hundred nineteen thousand, seven hundred twelve".