84811541 has 2 divisors, whose sum is σ = 84811542. Its totient is φ = 84811540.

The previous prime is 84811469. The next prime is 84811579. The reversal of 84811541 is 14511848.

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., 50822641 + 33988900 = 7129^2 + 5830^2 .

It is a cyclic number.

It is not a de Polignac number, because 84811541 - 2²² = 80617237 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 84811498 and 84811507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84811591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42405770 + 42405771.

It is an arithmetic number, because the mean of its divisors is an integer number (42405771).

Almost surely, 2^84811541 is an apocalyptic number.

It is an amenable number.

84811541 is a deficient number, since it is larger than the sum of its proper divisors (1).

84811541 is an equidigital number, since it uses as much as digits as its factorization.

84811541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5120, while the sum is 32.

The square root of 84811541 is about 9209.3181615145. The cubic root of 84811541 is about 439.3577769116.

The spelling of 84811541 in words is "eighty-four million, eight hundred eleven thousand, five hundred forty-one".