8961081 has 8 divisors (see below), whose sum is σ = 12173760. Its totient is φ = 5861232.

The previous prime is 8961079. The next prime is 8961107. The reversal of 8961081 is 1801698.

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

It is not a de Polignac number, because 8961081 - 2¹ = 8961079 is a prime.

It is a super-2 number, since 2×8961081² = 160601945377122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8961031) 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 7 ways as a sum of consecutive naturals, for example, 28021 + ... + 28338.

It is an arithmetic number, because the mean of its divisors is an integer number (1521720).

Almost surely, 2^8961081 is an apocalyptic number.

It is an amenable number.

8961081 is a deficient number, since it is larger than the sum of its proper divisors (3212679).

8961081 is a wasteful number, since it uses less digits than its factorization.

8961081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56415.

The product of its (nonzero) digits is 3456, while the sum is 33.

The square root of 8961081 is about 2993.5064723498. The cubic root of 8961081 is about 207.7081165449.

The spelling of 8961081 in words is "eight million, nine hundred sixty-one thousand, eighty-one".