84211469 has 6 divisors (see below), whose sum is σ = 87016590. Its totient is φ = 81494040.

The previous prime is 84211459. The next prime is 84211471. The reversal of 84211469 is 96411248.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 49519369 + 34692100 = 7037^2 + 5890^2 .

It is a de Polignac number, because none of the positive numbers 2^k-84211469 is a prime.

It is a super-2 number, since 2×84211469² = 14183143022275922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84211459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42854 + ... + 44775.

It is an arithmetic number, because the mean of its divisors is an integer number (14502765).

Almost surely, 2^84211469 is an apocalyptic number.

It is an amenable number.

84211469 is a deficient number, since it is larger than the sum of its proper divisors (2805121).

84211469 is an equidigital number, since it uses as much as digits as its factorization.

84211469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87691 (or 87660 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 84211469 is about 9176.6807179938. The cubic root of 84211469 is about 438.3191189262.

The spelling of 84211469 in words is "eighty-four million, two hundred eleven thousand, four hundred sixty-nine".