85438336 has 16 divisors (see below), whose sum is σ = 170209440. Its totient is φ = 42719104.

The previous prime is 85438319. The next prime is 85438351. The reversal of 85438336 is 63383458.

It is a tau number, because it is divible by the number of its divisors (16).

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 333616 + ... + 333871.

It is an arithmetic number, because the mean of its divisors is an integer number (10638090).

Almost surely, 2^85438336 is an apocalyptic number.

It is an amenable number.

85438336 is a deficient number, since it is larger than the sum of its proper divisors (84771104).

85438336 is an equidigital number, since it uses as much as digits as its factorization.

85438336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667501 (or 667489 counting only the distinct ones).

The product of its digits is 207360, while the sum is 40.

The square root of 85438336 is about 9243.2859957918. The cubic root of 85438336 is about 440.4374712349.

The spelling of 85438336 in words is "eighty-five million, four hundred thirty-eight thousand, three hundred thirty-six".