3998866095 has 24 divisors (see below), whose sum is σ = 7921563936. Its totient is φ = 1828052928.

The previous prime is 3998866087. The next prime is 3998866097. The reversal of 3998866095 is 5906688993.

It is not a de Polignac number, because 3998866095 - 2³ = 3998866087 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3998866097) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6347092 + ... + 6347721.

It is an arithmetic number, because the mean of its divisors is an integer number (330065164).

Almost surely, 2^3998866095 is an apocalyptic number.

3998866095 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3998866095 is a deficient number, since it is larger than the sum of its proper divisors (3922697841).

3998866095 is a wasteful number, since it uses less digits than its factorization.

3998866095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12694831 (or 12694828 counting only the distinct ones).

The product of its (nonzero) digits is 25194240, while the sum is 63.

The square root of 3998866095 is about 63236.5882618599. The cubic root of 3998866095 is about 1587.2510409600.

The spelling of 3998866095 in words is "three billion, nine hundred ninety-eight million, eight hundred sixty-six thousand, ninety-five".