3518881 has 4 divisors (see below), whose sum is σ = 3725892. Its totient is φ = 3311872.

The previous prime is 3518873. The next prime is 3518887. The reversal of 3518881 is 1888153.

3518881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1888153 = 677 ⋅2789.

It can be written as a sum of positive squares in 2 ways, for example, as 2117025 + 1401856 = 1455^2 + 1184^2 .

It is not a de Polignac number, because 3518881 - 2³ = 3518873 is a prime.

It is a super-2 number, since 2×3518881² = 24765046984322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3518887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103480 + ... + 103513.

It is an arithmetic number, because the mean of its divisors is an integer number (931473).

Almost surely, 2^3518881 is an apocalyptic number.

It is an amenable number.

3518881 is a deficient number, since it is larger than the sum of its proper divisors (207011).

3518881 is a wasteful number, since it uses less digits than its factorization.

3518881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207010.

The product of its digits is 7680, while the sum is 34.

The square root of 3518881 is about 1875.8680657232. The cubic root of 3518881 is about 152.1019773895.

The spelling of 3518881 in words is "three million, five hundred eighteen thousand, eight hundred eighty-one".