646363004 has 12 divisors (see below), whose sum is σ = 1292726064. Its totient is φ = 277012704.

The previous prime is 646362961. The next prime is 646363009. The reversal of 646363004 is 400363646.

646363004 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646363009) 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 3 ways as a sum of consecutive naturals, for example, 11542169 + ... + 11542224.

It is an arithmetic number, because the mean of its divisors is an integer number (107727172).

Almost surely, 2^646363004 is an apocalyptic number.

It is an amenable number.

646363004 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

646363004 is a wasteful number, since it uses less digits than its factorization.

646363004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23084404 (or 23084402 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 32.

The square root of 646363004 is about 25423.6701520453. The cubic root of 646363004 is about 864.6204373456.

The spelling of 646363004 in words is "six hundred forty-six million, three hundred sixty-three thousand, four".