3888181 has 4 divisors (see below), whose sum is σ = 4241664. Its totient is φ = 3534700.

The previous prime is 3888163. The next prime is 3888193. The reversal of 3888181 is 1818883.

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.

It is a cyclic number.

It is not a de Polignac number, because 3888181 - 2⁵ = 3888149 is a prime.

It is a super-2 number, since 2×3888181² = 30235902977522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3888181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3888151) 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, 176725 + ... + 176746.

It is an arithmetic number, because the mean of its divisors is an integer number (1060416).

Almost surely, 2^3888181 is an apocalyptic number.

It is an amenable number.

3888181 is a deficient number, since it is larger than the sum of its proper divisors (353483).

3888181 is a wasteful number, since it uses less digits than its factorization.

3888181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353482.

The product of its digits is 12288, while the sum is 37.

The square root of 3888181 is about 1971.8471036062. The cubic root of 3888181 is about 157.2469237083.

The spelling of 3888181 in words is "three million, eight hundred eighty-eight thousand, one hundred eighty-one".