84609161 has 16 divisors (see below), whose sum is σ = 104899200. Its totient is φ = 66451968.

The previous prime is 84609149. The next prime is 84609163. The reversal of 84609161 is 16190648.

It is a cyclic number.

It is not a de Polignac number, because 84609161 - 2¹⁰ = 84608137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84609163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9305 + ... + 15993.

It is an arithmetic number, because the mean of its divisors is an integer number (6556200).

Almost surely, 2^84609161 is an apocalyptic number.

It is an amenable number.

84609161 is a deficient number, since it is larger than the sum of its proper divisors (20290039).

84609161 is a wasteful number, since it uses less digits than its factorization.

84609161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6848.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 84609161 is about 9198.3238146958. The cubic root of 84609161 is about 439.0080287308.

The spelling of 84609161 in words is "eighty-four million, six hundred nine thousand, one hundred sixty-one".