3859939873 has 4 divisors (see below), whose sum is σ = 3869152560. Its totient is φ = 3850727188.

The previous prime is 3859939871. The next prime is 3859939891. The reversal of 3859939873 is 3789399583.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3789399583 = 56909 ⋅66587.

It is a cyclic number.

It is not a de Polignac number, because 3859939873 - 2¹ = 3859939871 is a prime.

It is a super-2 number, since 2×3859939873² = 29798271646350512258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3859939871) 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, 4605715 + ... + 4606552.

It is an arithmetic number, because the mean of its divisors is an integer number (967288140).

Almost surely, 2^3859939873 is an apocalyptic number.

It is an amenable number.

3859939873 is a deficient number, since it is larger than the sum of its proper divisors (9212687).

3859939873 is an equidigital number, since it uses as much as digits as its factorization.

3859939873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9212686.

The product of its digits is 44089920, while the sum is 64.

The square root of 3859939873 is about 62128.4143769982. The cubic root of 3859939873 is about 1568.6528632457.

The spelling of 3859939873 in words is "three billion, eight hundred fifty-nine million, nine hundred thirty-nine thousand, eight hundred seventy-three".