8617961 has 8 divisors (see below), whose sum is σ = 9422784. Its totient is φ = 7816720.

The previous prime is 8617949. The next prime is 8617991. The reversal of 8617961 is 1697168.

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

It is a cyclic number.

It is not a de Polignac number, because 8617961 - 2¹⁸ = 8355817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8617991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8276 + ... + 9258.

It is an arithmetic number, because the mean of its divisors is an integer number (1177848).

Almost surely, 2^8617961 is an apocalyptic number.

It is an amenable number.

8617961 is a deficient number, since it is larger than the sum of its proper divisors (804823).

8617961 is a wasteful number, since it uses less digits than its factorization.

8617961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1791.

The product of its digits is 18144, while the sum is 38.

The square root of 8617961 is about 2935.6363875657. The cubic root of 8617961 is about 205.0224920790.

The spelling of 8617961 in words is "eight million, six hundred seventeen thousand, nine hundred sixty-one".