85969878 has 8 divisors (see below), whose sum is σ = 171939768. Its totient is φ = 28656624.

The previous prime is 85969861. The next prime is 85969879. The reversal of 85969878 is 87896958.

It is a happy number.

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

85969878 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85969879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7164151 + ... + 7164162.

It is an arithmetic number, because the mean of its divisors is an integer number (21492471).

Almost surely, 2^85969878 is an apocalyptic number.

85969878 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85969878 is a wasteful number, since it uses less digits than its factorization.

85969878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14328318.

The product of its digits is 8709120, while the sum is 60.

The square root of 85969878 is about 9271.9942838636. The cubic root of 85969878 is about 441.3489558629.

The spelling of 85969878 in words is "eighty-five million, nine hundred sixty-nine thousand, eight hundred seventy-eight".