85360778 has 4 divisors (see below), whose sum is σ = 128041170. Its totient is φ = 42680388.

The previous prime is 85360741. The next prime is 85360801. The reversal of 85360778 is 87706358.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 77141089 + 8219689 = 8783^2 + 2867^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21340193 + ... + 21340196.

Almost surely, 2^85360778 is an apocalyptic number.

85360778 is a deficient number, since it is larger than the sum of its proper divisors (42680392).

85360778 is a wasteful number, since it uses less digits than its factorization.

85360778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42680391.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 85360778 is about 9239.0896737720. The cubic root of 85360778 is about 440.3041595294.

The spelling of 85360778 in words is "eighty-five million, three hundred sixty thousand, seven hundred seventy-eight".