646050804 has 48 divisors (see below), whose sum is σ = 1727230848. Its totient is φ = 184111488.

The previous prime is 646050793. The next prime is 646050827. The reversal of 646050804 is 408050646.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23662 + ... + 43034.

It is an arithmetic number, because the mean of its divisors is an integer number (35983976).

Almost surely, 2^646050804 is an apocalyptic number.

It is an amenable number.

646050804 is an abundant number, since it is smaller than the sum of its proper divisors (1081180044).

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

646050804 is a wasteful number, since it uses less digits than its factorization.

646050804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19784 (or 19782 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 646050804 is about 25417.5294629514. The cubic root of 646050804 is about 864.4812080627.

The spelling of 646050804 in words is "six hundred forty-six million, fifty thousand, eight hundred four".