84820161 has 8 divisors (see below), whose sum is σ = 119045920. Its totient is φ = 53570592.

The previous prime is 84820117. The next prime is 84820171. The reversal of 84820161 is 16102848.

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

It is not a de Polignac number, because 84820161 - 2⁷ = 84820033 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (84820171) 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, 743980 + ... + 744093.

It is an arithmetic number, because the mean of its divisors is an integer number (14880740).

Almost surely, 2^84820161 is an apocalyptic number.

It is an amenable number.

84820161 is a deficient number, since it is larger than the sum of its proper divisors (34225759).

84820161 is a wasteful number, since it uses less digits than its factorization.

84820161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488095.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 84820161 is about 9209.7861538692. The cubic root of 84820161 is about 439.3726614257.

The spelling of 84820161 in words is "eighty-four million, eight hundred twenty thousand, one hundred sixty-one".