85678940 has 24 divisors (see below), whose sum is σ = 180442080. Its totient is φ = 34173248.

The previous prime is 85678913. The next prime is 85678949. The reversal of 85678940 is 4987658.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85678949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1214 + ... + 13146.

It is an arithmetic number, because the mean of its divisors is an integer number (7518420).

Almost surely, 2^85678940 is an apocalyptic number.

It is an amenable number.

85678940 is an abundant number, since it is smaller than the sum of its proper divisors (94763140).

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

85678940 is a wasteful number, since it uses less digits than its factorization.

85678940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12301 (or 12299 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 85678940 is about 9256.2919141522. The cubic root of 85678940 is about 440.8505242904.

The spelling of 85678940 in words is "eighty-five million, six hundred seventy-eight thousand, nine hundred forty".