646494596 has 12 divisors (see below), whose sum is σ = 1234217040. Its totient is φ = 293861160.

The previous prime is 646494577. The next prime is 646494623. The reversal of 646494596 is 695494646.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7346486 + ... + 7346573.

It is an arithmetic number, because the mean of its divisors is an integer number (102851420).

Almost surely, 2^646494596 is an apocalyptic number.

It is an amenable number.

646494596 is a deficient number, since it is larger than the sum of its proper divisors (587722444).

646494596 is a wasteful number, since it uses less digits than its factorization.

646494596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14693074 (or 14693072 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 53.

The square root of 646494596 is about 25426.2580023093. The cubic root of 646494596 is about 864.6791089236.

Subtracting 646494596 from its reverse (695494646), we obtain a triangular number (49000050 = T₉₈₉₉).

The spelling of 646494596 in words is "six hundred forty-six million, four hundred ninety-four thousand, five hundred ninety-six".