881818 has 8 divisors (see below), whose sum is σ = 1511712. Its totient is φ = 377916.

The previous prime is 881813. The next prime is 881833. The reversal of 881818 is 818188.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

881818 is a modest number, since divided by 1818 gives 88 as remainder.

It is not an unprimeable number, because it can be changed into a prime (881813) 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, 31480 + ... + 31507.

It is an arithmetic number, because the mean of its divisors is an integer number (188964).

2⁸⁸¹⁸¹⁸ is an apocalyptic number.

881818 is a deficient number, since it is larger than the sum of its proper divisors (629894).

881818 is a wasteful number, since it uses less digits than its factorization.

881818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62996.

The product of its digits is 4096, while the sum is 34.

The square root of 881818 is about 939.0516492718. The cubic root of 881818 is about 95.8943426685.

It can be divided in two parts, 8818 and 18, that added together give a square (8836 = 94²).

The spelling of 881818 in words is "eight hundred eighty-one thousand, eight hundred eighteen".