84264161 has 4 divisors (see below), whose sum is σ = 84310932. Its totient is φ = 84217392.

The previous prime is 84264139. The next prime is 84264181. The reversal of 84264161 is 16146248.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48790225 + 35473936 = 6985^2 + 5956^2 .

It is a cyclic number.

It is not a de Polignac number, because 84264161 - 2⁶ = 84264097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84264101) 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 3 ways as a sum of consecutive naturals, for example, 20570 + ... + 24323.

It is an arithmetic number, because the mean of its divisors is an integer number (21077733).

Almost surely, 2^84264161 is an apocalyptic number.

It is an amenable number.

84264161 is a deficient number, since it is larger than the sum of its proper divisors (46771).

84264161 is a wasteful number, since it uses less digits than its factorization.

84264161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46770.

The product of its digits is 9216, while the sum is 32.

The square root of 84264161 is about 9179.5512417547. The cubic root of 84264161 is about 438.4105201563.

The spelling of 84264161 in words is "eighty-four million, two hundred sixty-four thousand, one hundred sixty-one".