84808237 has 2 divisors, whose sum is σ = 84808238. Its totient is φ = 84808236.

The previous prime is 84808183. The next prime is 84808247. The reversal of 84808237 is 73280848.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75933796 + 8874441 = 8714^2 + 2979^2 .

It is a cyclic number.

It is not a de Polignac number, because 84808237 - 2¹⁹ = 84283949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84808237.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84808247) 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, 42404118 + 42404119.

It is an arithmetic number, because the mean of its divisors is an integer number (42404119).

Almost surely, 2^84808237 is an apocalyptic number.

It is an amenable number.

84808237 is a deficient number, since it is larger than the sum of its proper divisors (1).

84808237 is an equidigital number, since it uses as much as digits as its factorization.

84808237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 84808237 is about 9209.1387762374. The cubic root of 84808237 is about 439.3520714894.

The spelling of 84808237 in words is "eighty-four million, eight hundred eight thousand, two hundred thirty-seven".