85886378 has 4 divisors (see below), whose sum is σ = 128829570. Its totient is φ = 42943188.

The previous prime is 85886377. The next prime is 85886389. The reversal of 85886378 is 87368858.

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., 85063729 + 822649 = 9223^2 + 907^2 .

It is not an unprimeable number, because it can be changed into a prime (85886377) 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 as a sum of consecutive naturals, namely, 21471593 + ... + 21471596.

Almost surely, 2^85886378 is an apocalyptic number.

85886378 is a deficient number, since it is larger than the sum of its proper divisors (42943192).

85886378 is a wasteful number, since it uses less digits than its factorization.

85886378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42943191.

The product of its digits is 2580480, while the sum is 53.

The square root of 85886378 is about 9267.4903830541. The cubic root of 85886378 is about 441.2060198470.

The spelling of 85886378 in words is "eighty-five million, eight hundred eighty-six thousand, three hundred seventy-eight".