8881668 has 18 divisors (see below), whose sum is σ = 22450974. Its totient is φ = 2960544.

The previous prime is 8881651. The next prime is 8881681. The reversal of 8881668 is 8661888.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5008644 + 3873024 = 2238^2 + 1968^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123321 + ... + 123392.

Almost surely, 2^8881668 is an apocalyptic number.

It is an amenable number.

8881668 is an abundant number, since it is smaller than the sum of its proper divisors (13569306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8881668 is a wasteful number, since it uses less digits than its factorization.

8881668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246723 (or 246718 counting only the distinct ones).

The product of its digits is 147456, while the sum is 45.

The square root of 8881668 is about 2980.2127440839. The cubic root of 8881668 is about 207.0927260828.

It can be divided in two parts, 888 and 1668, that added together give a triangular number (2556 = T₇₁).

The spelling of 8881668 in words is "eight million, eight hundred eighty-one thousand, six hundred sixty-eight".