8888661 has 12 divisors (see below), whose sum is σ = 13253760. Its totient is φ = 5734440.

The previous prime is 8888657. The next prime is 8888669. The reversal of 8888661 is 1668888.

It is a happy number.

It is not a de Polignac number, because 8888661 - 2² = 8888657 is a prime.

8888661 is a lucky number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8888669) 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 11 ways as a sum of consecutive naturals, for example, 15651 + ... + 16208.

It is an arithmetic number, because the mean of its divisors is an integer number (1104480).

Almost surely, 2^8888661 is an apocalyptic number.

It is an amenable number.

8888661 is a deficient number, since it is larger than the sum of its proper divisors (4365099).

8888661 is a wasteful number, since it uses less digits than its factorization.

8888661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31896 (or 31893 counting only the distinct ones).

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

The square root of 8888661 is about 2981.3857516262. The cubic root of 8888661 is about 207.1470634557.

The spelling of 8888661 in words is "eight million, eight hundred eighty-eight thousand, six hundred sixty-one".