84871253 has 2 divisors, whose sum is σ = 84871254. Its totient is φ = 84871252.

The previous prime is 84871243. The next prime is 84871277. The reversal of 84871253 is 35217848.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60497284 + 24373969 = 7778^2 + 4937^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84871253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84871243) 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, 42435626 + 42435627.

It is an arithmetic number, because the mean of its divisors is an integer number (42435627).

Almost surely, 2^84871253 is an apocalyptic number.

It is an amenable number.

84871253 is a deficient number, since it is larger than the sum of its proper divisors (1).

84871253 is an equidigital number, since it uses as much as digits as its factorization.

84871253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53760, while the sum is 38.

The square root of 84871253 is about 9212.5595249095. The cubic root of 84871253 is about 439.4608634205.

The spelling of 84871253 in words is "eighty-four million, eight hundred seventy-one thousand, two hundred fifty-three".