8179961 has 2 divisors, whose sum is σ = 8179962. Its totient is φ = 8179960.

The previous prime is 8179921. The next prime is 8179979. The reversal of 8179961 is 1699718.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8179600 + 361 = 2860^2 + 19^2 .

It is a cyclic number.

It is not a de Polignac number, because 8179961 - 2¹⁸ = 7917817 is a prime.

It is not a weakly prime, because it can be changed into another prime (8179921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4089980 + 4089981.

It is an arithmetic number, because the mean of its divisors is an integer number (4089981).

Almost surely, 2^8179961 is an apocalyptic number.

It is an amenable number.

8179961 is a deficient number, since it is larger than the sum of its proper divisors (1).

8179961 is an equidigital number, since it uses as much as digits as its factorization.

8179961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 41.

The square root of 8179961 is about 2860.0631111918. The cubic root of 8179961 is about 201.4885683347.

The spelling of 8179961 in words is "eight million, one hundred seventy-nine thousand, nine hundred sixty-one".