85078216 has 8 divisors (see below), whose sum is σ = 159521670. Its totient is φ = 42539104.

The previous prime is 85078187. The next prime is 85078223. The reversal of 85078216 is 61287058.

It can be written as a sum of positive squares in only one way, i.e., 64738116 + 20340100 = 8046^2 + 4510^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5317381 + ... + 5317396.

Almost surely, 2^85078216 is an apocalyptic number.

It is an amenable number.

85078216 is a deficient number, since it is larger than the sum of its proper divisors (74443454).

85078216 is a wasteful number, since it uses less digits than its factorization.

85078216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10634783 (or 10634779 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 85078216 is about 9223.7853400868. The cubic root of 85078216 is about 439.8177895682.

The spelling of 85078216 in words is "eighty-five million, seventy-eight thousand, two hundred sixteen".