85378178 has 8 divisors (see below), whose sum is σ = 128129040. Its totient is φ = 42668500.

The previous prime is 85378171. The next prime is 85378187. The reversal of 85378178 is 87187358.

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

It is not an unprimeable number, because it can be changed into a prime (85378171) 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, 4448 + ... + 13803.

It is an arithmetic number, because the mean of its divisors is an integer number (16016130).

Almost surely, 2^85378178 is an apocalyptic number.

85378178 is a deficient number, since it is larger than the sum of its proper divisors (42750862).

85378178 is a wasteful number, since it uses less digits than its factorization.

85378178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20592.

The product of its digits is 376320, while the sum is 47.

The square root of 85378178 is about 9240.0312770033. The cubic root of 85378178 is about 440.3340747983.

The spelling of 85378178 in words is "eighty-five million, three hundred seventy-eight thousand, one hundred seventy-eight".