85204418 has 8 divisors (see below), whose sum is σ = 137637948. Its totient is φ = 39325104.

The previous prime is 85204411. The next prime is 85204429. The reversal of 85204418 is 81440258.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 69939769 + 15264649 = 8363^2 + 3907^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85204411) 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 in 3 ways as a sum of consecutive naturals, for example, 1638521 + ... + 1638572.

Almost surely, 2^85204418 is an apocalyptic number.

85204418 is a deficient number, since it is larger than the sum of its proper divisors (52433530).

85204418 is a wasteful number, since it uses less digits than its factorization.

85204418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3277108.

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 85204418 is about 9230.6239225742. The cubic root of 85204418 is about 440.0351521503.

The spelling of 85204418 in words is "eighty-five million, two hundred four thousand, four hundred eighteen".