84690041 has 2 divisors, whose sum is σ = 84690042. Its totient is φ = 84690040.

The previous prime is 84690031. The next prime is 84690061. The reversal of 84690041 is 14009648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74321641 + 10368400 = 8621^2 + 3220^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84690041 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (84690031) 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 as a sum of consecutive naturals, namely, 42345020 + 42345021.

It is an arithmetic number, because the mean of its divisors is an integer number (42345021).

Almost surely, 2^84690041 is an apocalyptic number.

It is an amenable number.

84690041 is a deficient number, since it is larger than the sum of its proper divisors (1).

84690041 is an equidigital number, since it uses as much as digits as its factorization.

84690041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 84690041 is about 9202.7192177095. The cubic root of 84690041 is about 439.1478704097.

Adding to 84690041 its reverse (14009648), we get a palindrome (98699689).

The spelling of 84690041 in words is "eighty-four million, six hundred ninety thousand, forty-one".