3558881 has 2 divisors, whose sum is σ = 3558882. Its totient is φ = 3558880.

The previous prime is 3558869. The next prime is 3558883. The reversal of 3558881 is 1888553.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3478225 + 80656 = 1865^2 + 284^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3558881 is a prime.

It is a super-2 number, since 2×3558881² = 25331267944322, which contains 22 as substring.

Together with 3558883, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (3558883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1779440 + 1779441.

It is an arithmetic number, because the mean of its divisors is an integer number (1779441).

Almost surely, 2^3558881 is an apocalyptic number.

It is an amenable number.

3558881 is a deficient number, since it is larger than the sum of its proper divisors (1).

3558881 is an equidigital number, since it uses as much as digits as its factorization.

3558881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38400, while the sum is 38.

The square root of 3558881 is about 1886.4996686986. The cubic root of 3558881 is about 152.6761343920.

The spelling of 3558881 in words is "three million, five hundred fifty-eight thousand, eight hundred eighty-one".