85637378 has 8 divisors (see below), whose sum is σ = 128625420. Its totient is φ = 42762240.

The previous prime is 85637369. The next prime is 85637399. The reversal of 85637378 is 87373658.

It can be written as a sum of positive squares in 2 ways, for example, as 85137529 + 499849 = 9227^2 + 707^2 .

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

It is a Curzon number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 26303 + ... + 29378.

Almost surely, 2^85637378 is an apocalyptic number.

85637378 is a deficient number, since it is larger than the sum of its proper divisors (42988042).

85637378 is a wasteful number, since it uses less digits than its factorization.

85637378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56452.

The product of its digits is 846720, while the sum is 47.

The square root of 85637378 is about 9254.0465743371. The cubic root of 85637378 is about 440.7792286955.

The spelling of 85637378 in words is "eighty-five million, six hundred thirty-seven thousand, three hundred seventy-eight".