646070608 has 20 divisors (see below), whose sum is σ = 1252607328. Its totient is φ = 322817120.

The previous prime is 646070603. The next prime is 646070609. The reversal of 646070608 is 806070646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646070603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12285 + ... + 37987.

Almost surely, 2^646070608 is an apocalyptic number.

It is an amenable number.

646070608 is a deficient number, since it is larger than the sum of its proper divisors (606536720).

646070608 is a wasteful number, since it uses less digits than its factorization.

646070608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27282 (or 27276 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 646070608 is about 25417.9190336267. The cubic root of 646070608 is about 864.4900412230.

The spelling of 646070608 in words is "six hundred forty-six million, seventy thousand, six hundred eight".