646800696 has 24 divisors (see below), whose sum is σ = 1751752080. Its totient is φ = 215600208.

The previous prime is 646800691. The next prime is 646800703. The reversal of 646800696 is 696008646.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×646800696² = 836702280692168832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646800691) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4491600 + ... + 4491743.

It is an arithmetic number, because the mean of its divisors is an integer number (72989670).

Almost surely, 2^646800696 is an apocalyptic number.

It is an amenable number.

646800696 is an abundant number, since it is smaller than the sum of its proper divisors (1104951384).

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

646800696 is a wasteful number, since it uses less digits than its factorization.

646800696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8983355 (or 8983348 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 646800696 is about 25432.2766578220. The cubic root of 646800696 is about 864.8155558044.

The spelling of 646800696 in words is "six hundred forty-six million, eight hundred thousand, six hundred ninety-six".