84075469 has 4 divisors (see below), whose sum is σ = 84287644. Its totient is φ = 83863296.

The previous prime is 84075457. The next prime is 84075479. The reversal of 84075469 is 96457048.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59444100 + 24631369 = 7710^2 + 4963^2 .

It is a cyclic number.

It is not a de Polignac number, because 84075469 - 2¹¹ = 84073421 is a prime.

It is a super-2 number, since 2×84075469² = 14137368975139922, 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 (84075479) 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 3 ways as a sum of consecutive naturals, for example, 105492 + ... + 106285.

It is an arithmetic number, because the mean of its divisors is an integer number (21071911).

Almost surely, 2^84075469 is an apocalyptic number.

It is an amenable number.

84075469 is a deficient number, since it is larger than the sum of its proper divisors (212175).

84075469 is a wasteful number, since it uses less digits than its factorization.

84075469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212174.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 84075469 is about 9169.2676370580. The cubic root of 84075469 is about 438.0830326379.

The spelling of 84075469 in words is "eighty-four million, seventy-five thousand, four hundred sixty-nine".