85904394 has 8 divisors (see below), whose sum is σ = 171808800. Its totient is φ = 28634796.

The previous prime is 85904393. The next prime is 85904407. The reversal of 85904394 is 49340958.

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

85904394 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (85904393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7158694 + ... + 7158705.

It is an arithmetic number, because the mean of its divisors is an integer number (21476100).

Almost surely, 2^85904394 is an apocalyptic number.

85904394 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85904394 is a wasteful number, since it uses less digits than its factorization.

85904394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14317404.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 85904394 is about 9268.4623320160. The cubic root of 85904394 is about 441.2368676257.

The spelling of 85904394 in words is "eighty-five million, nine hundred four thousand, three hundred ninety-four".