84218753 has 2 divisors, whose sum is σ = 84218754. Its totient is φ = 84218752.

The previous prime is 84218747. The next prime is 84218759. The reversal of 84218753 is 35781248.

It is a balanced prime because it is at equal distance from previous prime (84218747) and next prime (84218759).

It can be written as a sum of positive squares in only one way, i.e., 72982849 + 11235904 = 8543^2 + 3352^2 .

It is a cyclic number.

It is not a de Polignac number, because 84218753 - 2¹⁰ = 84217729 is a prime.

It is equal to p_4900988 and since 84218753 and 4900988 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (84218759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42109376 + 42109377.

It is an arithmetic number, because the mean of its divisors is an integer number (42109377).

Almost surely, 2^84218753 is an apocalyptic number.

It is an amenable number.

84218753 is a deficient number, since it is larger than the sum of its proper divisors (1).

84218753 is an equidigital number, since it uses as much as digits as its factorization.

84218753 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 84218753 is about 9177.0775849396. The cubic root of 84218753 is about 438.3317562564.

The spelling of 84218753 in words is "eighty-four million, two hundred eighteen thousand, seven hundred fifty-three".