85678012 has 24 divisors (see below), whose sum is σ = 171924480. Its totient is φ = 36597360.

The previous prime is 85678009. The next prime is 85678031. The reversal of 85678012 is 21087658.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3789 + ... + 13627.

It is an arithmetic number, because the mean of its divisors is an integer number (7163520).

Almost surely, 2^85678012 is an apocalyptic number.

It is an amenable number.

85678012 is an abundant number, since it is smaller than the sum of its proper divisors (86246468).

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

85678012 is a wasteful number, since it uses less digits than its factorization.

85678012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10161 (or 10159 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 85678012 is about 9256.2417859518. The cubic root of 85678012 is about 440.8489326478.

The spelling of 85678012 in words is "eighty-five million, six hundred seventy-eight thousand, twelve".