8210961 has 12 divisors (see below), whose sum is σ = 12938640. Its totient is φ = 4976280.

The previous prime is 8210933. The next prime is 8210987. The reversal of 8210961 is 1690128.

It is not a de Polignac number, because 8210961 - 2⁷ = 8210833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8210911) 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, 41371 + ... + 41568.

It is an arithmetic number, because the mean of its divisors is an integer number (1078220).

Almost surely, 2^8210961 is an apocalyptic number.

It is an amenable number.

8210961 is a deficient number, since it is larger than the sum of its proper divisors (4727679).

8210961 is a wasteful number, since it uses less digits than its factorization.

8210961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82956 (or 82953 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 8210961 is about 2865.4774471281. The cubic root of 8210961 is about 201.7427778494.

The spelling of 8210961 in words is "eight million, two hundred ten thousand, nine hundred sixty-one".