3939417668 has 24 divisors (see below), whose sum is σ = 7293686400. Its totient is φ = 1856560608.

The previous prime is 3939417661. The next prime is 3939417683. The reversal of 3939417668 is 8667149393.

It is not an unprimeable number, because it can be changed into a prime (3939417661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116588 + ... + 146531.

It is an arithmetic number, because the mean of its divisors is an integer number (303903600).

Almost surely, 2^3939417668 is an apocalyptic number.

3939417668 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

3939417668 is a deficient number, since it is larger than the sum of its proper divisors (3354268732).

3939417668 is a wasteful number, since it uses less digits than its factorization.

3939417668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263339 (or 263337 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 56.

The square root of 3939417668 is about 62764.7804744030. The cubic root of 3939417668 is about 1579.3462108386.

The spelling of 3939417668 in words is "three billion, nine hundred thirty-nine million, four hundred seventeen thousand, six hundred sixty-eight".