646354662 has 8 divisors (see below), whose sum is σ = 1292709336. Its totient is φ = 215451552.

The previous prime is 646354633. The next prime is 646354727. The reversal of 646354662 is 266453646.

646354662 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

646354662 is an admirable number.

It is a super-3 number, since 3×646354662³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

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, 53862883 + ... + 53862894.

It is an arithmetic number, because the mean of its divisors is an integer number (161588667).

Almost surely, 2^646354662 is an apocalyptic number.

646354662 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.

646354662 is a wasteful number, since it uses less digits than its factorization.

646354662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107725782.

The product of its digits is 622080, while the sum is 42.

The square root of 646354662 is about 25423.5060918041. The cubic root of 646354662 is about 864.6167177150.

The spelling of 646354662 in words is "six hundred forty-six million, three hundred fifty-four thousand, six hundred sixty-two".