85378107 has 4 divisors (see below), whose sum is σ = 113837480. Its totient is φ = 56918736.

The previous prime is 85378103. The next prime is 85378147. The reversal of 85378107 is 70187358.

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

It is not a de Polignac number, because 85378107 - 2² = 85378103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85378103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14229682 + ... + 14229687.

It is an arithmetic number, because the mean of its divisors is an integer number (28459370).

Almost surely, 2^85378107 is an apocalyptic number.

85378107 is a deficient number, since it is larger than the sum of its proper divisors (28459373).

85378107 is a wasteful number, since it uses less digits than its factorization.

85378107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28459372.

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 85378107 is about 9240.0274350242. The cubic root of 85378107 is about 440.3339527385. Note that the first 3 decimals are identical.

The spelling of 85378107 in words is "eighty-five million, three hundred seventy-eight thousand, one hundred seven".