8881961 has 16 divisors (see below), whose sum is σ = 10086720. Its totient is φ = 7750080.

The previous prime is 8881921. The next prime is 8881969. The reversal of 8881961 is 1691888.

It is a cyclic number.

It is not a de Polignac number, because 8881961 - 2¹⁸ = 8619817 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8881969) 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 15 ways as a sum of consecutive naturals, for example, 56495 + ... + 56651.

It is an arithmetic number, because the mean of its divisors is an integer number (630420).

Almost surely, 2^8881961 is an apocalyptic number.

It is an amenable number.

8881961 is a deficient number, since it is larger than the sum of its proper divisors (1204759).

8881961 is a wasteful number, since it uses less digits than its factorization.

8881961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344.

The product of its digits is 27648, while the sum is 41.

The square root of 8881961 is about 2980.2619012429. The cubic root of 8881961 is about 207.0950033390.

The spelling of 8881961 in words is "eight million, eight hundred eighty-one thousand, nine hundred sixty-one".