85178074 has 8 divisors (see below), whose sum is σ = 130883508. Its totient is φ = 41550240.

The previous prime is 85178069. The next prime is 85178077. The reversal of 85178074 is 47087158.

It can be written as a sum of positive squares in 2 ways, for example, as 60606225 + 24571849 = 7785^2 + 4957^2 .

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 (85178077) 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, 519297 + ... + 519460.

Almost surely, 2^85178074 is an apocalyptic number.

85178074 is a deficient number, since it is larger than the sum of its proper divisors (45705434).

85178074 is a wasteful number, since it uses less digits than its factorization.

85178074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038800.

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

The square root of 85178074 is about 9229.1968231261. The cubic root of 85178074 is about 439.9897965953.

The spelling of 85178074 in words is "eighty-five million, one hundred seventy-eight thousand, seventy-four".