84642053 has 2 divisors, whose sum is σ = 84642054. Its totient is φ = 84642052.

The previous prime is 84642043. The next prime is 84642067. The reversal of 84642053 is 35024648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84309124 + 332929 = 9182^2 + 577^2 .

It is a cyclic number.

It is not a de Polignac number, because 84642053 - 2⁴ = 84642037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84642013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42321026 + 42321027.

It is an arithmetic number, because the mean of its divisors is an integer number (42321027).

Almost surely, 2^84642053 is an apocalyptic number.

It is an amenable number.

84642053 is a deficient number, since it is larger than the sum of its proper divisors (1).

84642053 is an equidigital number, since it uses as much as digits as its factorization.

84642053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 84642053 is about 9200.1115754104. Note that the first 3 decimals coincide. The cubic root of 84642053 is about 439.0649098106.

The spelling of 84642053 in words is "eighty-four million, six hundred forty-two thousand, fifty-three".