85184469 has 6 divisors (see below), whose sum is σ = 123044246. Its totient is φ = 56789640.

The previous prime is 85184461. The next prime is 85184521. The reversal of 85184469 is 96448158.

85184469 is a `hidden beast` number, since 8 + 5 + 184 + 469 = 666.

It can be written as a sum of positive squares in only one way, i.e., 56700900 + 28483569 = 7530^2 + 5337^2 .

It is not a de Polignac number, because 85184469 - 2³ = 85184461 is a prime.

It is a super-2 number, since 2×85184469² = 14512787517623922, 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 (85184461) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4732462 + ... + 4732479.

Almost surely, 2^85184469 is an apocalyptic number.

It is an amenable number.

85184469 is a deficient number, since it is larger than the sum of its proper divisors (37859777).

85184469 is a wasteful number, since it uses less digits than its factorization.

85184469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9464947 (or 9464944 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 85184469 is about 9229.5432714734. The cubic root of 85184469 is about 440.0008075054. Note that the first 3 decimals are identical.

The spelling of 85184469 in words is "eighty-five million, one hundred eighty-four thousand, four hundred sixty-nine".