85684448 has 12 divisors (see below), whose sum is σ = 168691320. Its totient is φ = 42842208.

The previous prime is 85684421. The next prime is 85684451. The reversal of 85684448 is 84448658.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1338788 + ... + 1338851.

It is an arithmetic number, because the mean of its divisors is an integer number (14057610).

Almost surely, 2^85684448 is an apocalyptic number.

It is an amenable number.

85684448 is a deficient number, since it is larger than the sum of its proper divisors (83006872).

85684448 is a wasteful number, since it uses less digits than its factorization.

85684448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2677649 (or 2677641 counting only the distinct ones).

The product of its digits is 983040, while the sum is 47.

The square root of 85684448 is about 9256.5894367202. The cubic root of 85684448 is about 440.8599710018.

The spelling of 85684448 in words is "eighty-five million, six hundred eighty-four thousand, four hundred forty-eight".