85463947 has 12 divisors (see below), whose sum is σ = 92053336. Its totient is φ = 79315200.

The previous prime is 85463923. The next prime is 85463999. The reversal of 85463947 is 74936458.

It is not a de Polignac number, because 85463947 - 2¹¹ = 85461899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85463897 and 85463906.

It is not an unprimeable number, because it can be changed into a prime (85463047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19072 + ... + 23122.

Almost surely, 2^85463947 is an apocalyptic number.

85463947 is a deficient number, since it is larger than the sum of its proper divisors (6589389).

85463947 is a wasteful number, since it uses less digits than its factorization.

85463947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4158 (or 4141 counting only the distinct ones).

The product of its digits is 725760, while the sum is 46.

The square root of 85463947 is about 9244.6712759297. The cubic root of 85463947 is about 440.4814753580.

The spelling of 85463947 in words is "eighty-five million, four hundred sixty-three thousand, nine hundred forty-seven".