84435541 has 2 divisors, whose sum is σ = 84435542. Its totient is φ = 84435540.

The previous prime is 84435511. The next prime is 84435557. The reversal of 84435541 is 14553448.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69388900 + 15046641 = 8330^2 + 3879^2 .

It is a cyclic number.

It is not a de Polignac number, because 84435541 - 2⁵ = 84435509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84435497 and 84435506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84435511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42217770 + 42217771.

It is an arithmetic number, because the mean of its divisors is an integer number (42217771).

Almost surely, 2^84435541 is an apocalyptic number.

It is an amenable number.

84435541 is a deficient number, since it is larger than the sum of its proper divisors (1).

84435541 is an equidigital number, since it uses as much as digits as its factorization.

84435541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38400, while the sum is 34.

The square root of 84435541 is about 9188.8813791451. The cubic root of 84435541 is about 438.7075381455.

Adding to 84435541 its reverse (14553448), we get a palindrome (98988989).

The spelling of 84435541 in words is "eighty-four million, four hundred thirty-five thousand, five hundred forty-one".