85078174 has 4 divisors (see below), whose sum is σ = 127617264. Its totient is φ = 42539086.

The previous prime is 85078171. The next prime is 85078187. The reversal of 85078174 is 47187058.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47187058 = 2 ⋅23593529.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85078171) 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 as a sum of consecutive naturals, namely, 21269542 + ... + 21269545.

It is an arithmetic number, because the mean of its divisors is an integer number (31904316).

Almost surely, 2^85078174 is an apocalyptic number.

85078174 is a deficient number, since it is larger than the sum of its proper divisors (42539090).

85078174 is a wasteful number, since it uses less digits than its factorization.

85078174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42539089.

The product of its (nonzero) digits is 62720, while the sum is 40.

The square root of 85078174 is about 9223.7830633640. The cubic root of 85078174 is about 439.8177171942.

The spelling of 85078174 in words is "eighty-five million, seventy-eight thousand, one hundred seventy-four".