3838693817 has 4 divisors (see below), whose sum is σ = 4387078656. Its totient is φ = 3290308980.

The previous prime is 3838693783. The next prime is 3838693829. The reversal of 3838693817 is 7183968383.

It is a happy number.

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: 7183968383 = 433 ⋅16591151.

It is not a de Polignac number, because 3838693817 - 2⁸ = 3838693561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3838693867) 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, 274192409 + ... + 274192422.

It is an arithmetic number, because the mean of its divisors is an integer number (1096769664).

Almost surely, 2^3838693817 is an apocalyptic number.

It is an amenable number.

3838693817 is a deficient number, since it is larger than the sum of its proper divisors (548384839).

3838693817 is an equidigital number, since it uses as much as digits as its factorization.

3838693817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548384838.

The product of its digits is 5225472, while the sum is 56.

The square root of 3838693817 is about 61957.1934241699. The cubic root of 3838693817 is about 1565.7694830834.

The spelling of 3838693817 in words is "three billion, eight hundred thirty-eight million, six hundred ninety-three thousand, eight hundred seventeen".