838161713 has 4 divisors (see below), whose sum is σ = 845851380. Its totient is φ = 830472048.

The previous prime is 838161689. The next prime is 838161721. The reversal of 838161713 is 317161838.

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

It can be written as a sum of positive squares in 2 ways, for example, as 646837489 + 191324224 = 25433^2 + 13832^2 .

It is a cyclic number.

It is not a de Polignac number, because 838161713 - 2¹⁰ = 838160689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (838161733) 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, 3844670 + ... + 3844887.

It is an arithmetic number, because the mean of its divisors is an integer number (211462845).

Almost surely, 2^838161713 is an apocalyptic number.

It is an amenable number.

838161713 is a deficient number, since it is larger than the sum of its proper divisors (7689667).

838161713 is a wasteful number, since it uses less digits than its factorization.

838161713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7689666.

The product of its digits is 24192, while the sum is 38.

The square root of 838161713 is about 28951.0226589666. The cubic root of 838161713 is about 942.8500016502.

The spelling of 838161713 in words is "eight hundred thirty-eight million, one hundred sixty-one thousand, seven hundred thirteen".