84642353 has 2 divisors, whose sum is σ = 84642354. Its totient is φ = 84642352.

The previous prime is 84642331. The next prime is 84642367. The reversal of 84642353 is 35324648.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43784689 + 40857664 = 6617^2 + 6392^2 .

It is a cyclic number.

It is not a de Polignac number, because 84642353 - 2⁶ = 84642289 is a prime.

It is not a weakly prime, because it can be changed into another prime (84642053) 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, 42321176 + 42321177.

It is an arithmetic number, because the mean of its divisors is an integer number (42321177).

Almost surely, 2^84642353 is an apocalyptic number.

It is an amenable number.

84642353 is a deficient number, since it is larger than the sum of its proper divisors (1).

84642353 is an equidigital number, since it uses as much as digits as its factorization.

84642353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 35.

The square root of 84642353 is about 9200.1278795460. The cubic root of 84642353 is about 439.0654285414.

The spelling of 84642353 in words is "eighty-four million, six hundred forty-two thousand, three hundred fifty-three".