646062088 has 32 divisors (see below), whose sum is σ = 1444613760. Its totient is φ = 264844800.

The previous prime is 646062049. The next prime is 646062089. The reversal of 646062088 is 880260646.

It is a self number, because there is not a number n which added to its sum of digits gives 646062088.

It is not an unprimeable number, because it can be changed into a prime (646062089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249513 + ... + 252088.

It is an arithmetic number, because the mean of its divisors is an integer number (45144180).

Almost surely, 2^646062088 is an apocalyptic number.

It is an amenable number.

646062088 is an abundant number, since it is smaller than the sum of its proper divisors (798551672).

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

646062088 is a wasteful number, since it uses less digits than its factorization.

646062088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501637 (or 501633 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 646062088 is about 25417.7514347749. The cubic root of 646062088 is about 864.4862410772.

The spelling of 646062088 in words is "six hundred forty-six million, sixty-two thousand, eighty-eight".