3872069399 has 4 divisors (see below), whose sum is σ = 4224075720. Its totient is φ = 3520063080.

The previous prime is 3872069393. The next prime is 3872069417. The reversal of 3872069399 is 9939602783.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3872069399 - 2²⁰ = 3871020823 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 (3872069393) 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, 176003144 + ... + 176003165.

It is an arithmetic number, because the mean of its divisors is an integer number (1056018930).

Almost surely, 2^3872069399 is an apocalyptic number.

3872069399 is a deficient number, since it is larger than the sum of its proper divisors (352006321).

3872069399 is a wasteful number, since it uses less digits than its factorization.

3872069399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352006320.

The product of its (nonzero) digits is 4408992, while the sum is 56.

The square root of 3872069399 is about 62225.9543840028. The cubic root of 3872069399 is about 1570.2942636119.

The spelling of 3872069399 in words is "three billion, eight hundred seventy-two million, sixty-nine thousand, three hundred ninety-nine".