3990807199 has 4 divisors (see below), whose sum is σ = 3992620936. Its totient is φ = 3988993464.

The previous prime is 3990807179. The next prime is 3990807217. The reversal of 3990807199 is 9917080993.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9917080993 = 7703 ⋅1287431.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3990807199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3990807169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 903564 + ... + 907969.

It is an arithmetic number, because the mean of its divisors is an integer number (998155234).

Almost surely, 2^3990807199 is an apocalyptic number.

3990807199 is a deficient number, since it is larger than the sum of its proper divisors (1813737).

3990807199 is a wasteful number, since it uses less digits than its factorization.

3990807199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1813736.

The product of its (nonzero) digits is 1102248, while the sum is 55.

The square root of 3990807199 is about 63172.8359265278. The cubic root of 3990807199 is about 1586.1840640327.

The spelling of 3990807199 in words is "three billion, nine hundred ninety million, eight hundred seven thousand, one hundred ninety-nine".