85684347 has 12 divisors (see below), whose sum is σ = 141447280. Its totient is φ = 48962448.

The previous prime is 85684327. The next prime is 85684351. The reversal of 85684347 is 74348658.

85684347 is a `hidden beast` number, since 8 + 568 + 43 + 47 = 666.

It is not a de Polignac number, because 85684347 - 2¹² = 85680251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85684307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 679972 + ... + 680097.

Almost surely, 2^85684347 is an apocalyptic number.

85684347 is a deficient number, since it is larger than the sum of its proper divisors (55762933).

85684347 is a wasteful number, since it uses less digits than its factorization.

85684347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360082 (or 1360079 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 85684347 is about 9256.5839811455. The cubic root of 85684347 is about 440.8597977814.

The spelling of 85684347 in words is "eighty-five million, six hundred eighty-four thousand, three hundred forty-seven".