84808161 has 8 divisors (see below), whose sum is σ = 125641760. Its totient is φ = 56538756.

The previous prime is 84808147. The next prime is 84808183. The reversal of 84808161 is 16180848.

It is not a de Polignac number, because 84808161 - 2⁹ = 84807649 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 (84818161) 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 7 ways as a sum of consecutive naturals, for example, 1570495 + ... + 1570548.

It is an arithmetic number, because the mean of its divisors is an integer number (15705220).

Almost surely, 2^84808161 is an apocalyptic number.

It is an amenable number.

84808161 is a deficient number, since it is larger than the sum of its proper divisors (40833599).

84808161 is a wasteful number, since it uses less digits than its factorization.

84808161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3141052 (or 3141046 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 84808161 is about 9209.1346499006. The cubic root of 84808161 is about 439.3519402491.

It can be divided in two parts, 8480 and 8161, that added together give a square (16641 = 129²).

The spelling of 84808161 in words is "eighty-four million, eight hundred eight thousand, one hundred sixty-one".