3885688117 has 4 divisors (see below), whose sum is σ = 3887847436. Its totient is φ = 3883528800.

The previous prime is 3885688099. The next prime is 3885688127. The reversal of 3885688117 is 7118865883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7118865883 = 809 ⋅8799587.

It can be written as a sum of positive squares in 2 ways, for example, as 203747076 + 3681941041 = 14274^2 + 60679^2 .

It is a cyclic number.

It is not a de Polignac number, because 3885688117 - 2¹¹ = 3885686069 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 (3885688127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1076958 + ... + 1080559.

It is an arithmetic number, because the mean of its divisors is an integer number (971961859).

Almost surely, 2^3885688117 is an apocalyptic number.

It is an amenable number.

3885688117 is a deficient number, since it is larger than the sum of its proper divisors (2159319).

3885688117 is a wasteful number, since it uses less digits than its factorization.

3885688117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159318.

The product of its digits is 2580480, while the sum is 55.

The square root of 3885688117 is about 62335.2878953807. The cubic root of 3885688117 is about 1572.1331056211.

The spelling of 3885688117 in words is "three billion, eight hundred eighty-five million, six hundred eighty-eight thousand, one hundred seventeen".