85878816 has 48 divisors (see below), whose sum is σ = 226332288. Its totient is φ = 28512000.

The previous prime is 85878799. The next prime is 85878829. The reversal of 85878816 is 61887858.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

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, 24366 + ... + 27666.

It is an arithmetic number, because the mean of its divisors is an integer number (4715256).

Almost surely, 2^85878816 is an apocalyptic number.

It is an amenable number.

85878816 is an abundant number, since it is smaller than the sum of its proper divisors (140453472).

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

85878816 is a wasteful number, since it uses less digits than its factorization.

85878816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3585 (or 3577 counting only the distinct ones).

The product of its digits is 860160, while the sum is 51.

The square root of 85878816 is about 9267.0823887565. The cubic root of 85878816 is about 441.1930705764.

The spelling of 85878816 in words is "eighty-five million, eight hundred seventy-eight thousand, eight hundred sixteen".