84441541 has 2 divisors, whose sum is σ = 84441542. Its totient is φ = 84441540.

The previous prime is 84441523. The next prime is 84441547. The reversal of 84441541 is 14514448.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58216900 + 26224641 = 7630^2 + 5121^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84441541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84441547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42220770 + 42220771.

It is an arithmetic number, because the mean of its divisors is an integer number (42220771).

Almost surely, 2^84441541 is an apocalyptic number.

It is an amenable number.

84441541 is a deficient number, since it is larger than the sum of its proper divisors (1).

84441541 is an equidigital number, since it uses as much as digits as its factorization.

84441541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10240, while the sum is 31.

The square root of 84441541 is about 9189.2078548698. The cubic root of 84441541 is about 438.7179294367.

Subtracting from 84441541 its sum of digits (31), we obtain a triangular number (84441510 = T₁₂₉₉₅).

Adding to 84441541 its reverse (14514448), we get a palindrome (98955989).

The spelling of 84441541 in words is "eighty-four million, four hundred forty-one thousand, five hundred forty-one".