3998806017 has 8 divisors (see below), whose sum is σ = 5419147200. Its totient is φ = 2622167760.

The previous prime is 3998806003. The next prime is 3998806057. The reversal of 3998806017 is 7106088993.

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

It is not a de Polignac number, because 3998806017 - 2⁶ = 3998805953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3998806057) 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, 10925517 + ... + 10925882.

It is an arithmetic number, because the mean of its divisors is an integer number (677393400).

Almost surely, 2^3998806017 is an apocalyptic number.

It is an amenable number.

3998806017 is a deficient number, since it is larger than the sum of its proper divisors (1420341183).

3998806017 is a wasteful number, since it uses less digits than its factorization.

3998806017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21851463.

The product of its (nonzero) digits is 653184, while the sum is 51.

The square root of 3998806017 is about 63236.1132344486. The cubic root of 3998806017 is about 1587.2430920945.

The spelling of 3998806017 in words is "three billion, nine hundred ninety-eight million, eight hundred six thousand, seventeen".