3998090807 has 8 divisors (see below), whose sum is σ = 4042500000. Its totient is φ = 3953746944.

The previous prime is 3998090797. The next prime is 3998090839. The reversal of 3998090807 is 7080908993.

3998090807 is digitally balanced in base 3, 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.

It is a cyclic number.

It is not a de Polignac number, because 3998090807 - 2⁶ = 3998090743 is a prime.

It is a super-2 number, since 2×3998090807² = 31969460202035822498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3998090867) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 112319 + ... + 143567.

It is an arithmetic number, because the mean of its divisors is an integer number (505312500).

Almost surely, 2^3998090807 is an apocalyptic number.

3998090807 is a deficient number, since it is larger than the sum of its proper divisors (44409193).

3998090807 is a wasteful number, since it uses less digits than its factorization.

3998090807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32665.

The product of its (nonzero) digits is 979776, while the sum is 53.

The square root of 3998090807 is about 63230.4579059807. The cubic root of 3998090807 is about 1587.1484571949.

The spelling of 3998090807 in words is "three billion, nine hundred ninety-eight million, ninety thousand, eight hundred seven".