646825962 has 32 divisors (see below), whose sum is σ = 1371311424. Its totient is φ = 202694400.

The previous prime is 646825951. The next prime is 646825969. The reversal of 646825962 is 269528646.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (646825969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101037 + ... + 107247.

It is an arithmetic number, because the mean of its divisors is an integer number (42853482).

Almost surely, 2^646825962 is an apocalyptic number.

646825962 is an abundant number, since it is smaller than the sum of its proper divisors (724485462).

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

646825962 is a wasteful number, since it uses less digits than its factorization.

646825962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7254.

The product of its digits is 1244160, while the sum is 48.

The square root of 646825962 is about 25432.7733839627. The cubic root of 646825962 is about 864.8268164320.

The spelling of 646825962 in words is "six hundred forty-six million, eight hundred twenty-five thousand, nine hundred sixty-two".