3946656968 has 16 divisors (see below), whose sum is σ = 7400687580. Its totient is φ = 1973140288.

The previous prime is 3946656949. The next prime is 3946656979. The reversal of 3946656968 is 8696566493.

It can be written as a sum of positive squares in 2 ways, for example, as 3919010404 + 27646564 = 62602^2 + 5258^2 .

It is a super-2 number, since 2×3946656968² = 31152202446125906048, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3946656968.

It is an unprimeable number.

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, 110546 + ... + 141822.

Almost surely, 2^3946656968 is an apocalyptic number.

It is an amenable number.

3946656968 is a deficient number, since it is larger than the sum of its proper divisors (3454030612).

3946656968 is a wasteful number, since it uses less digits than its factorization.

3946656968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47056 (or 47052 counting only the distinct ones).

The product of its digits is 50388480, while the sum is 62.

The square root of 3946656968 is about 62822.4240856718. The cubic root of 3946656968 is about 1580.3130512530.

The spelling of 3946656968 in words is "three billion, nine hundred forty-six million, six hundred fifty-six thousand, nine hundred sixty-eight".