85823547 has 8 divisors (see below), whose sum is σ = 114607680. Its totient is φ = 57127560.

The previous prime is 85823539. The next prime is 85823567. The reversal of 85823547 is 74532858.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85823547 - 2³ = 85823539 is a prime.

It is a super-2 number, since 2×85823547² = 14731362439322418, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85823499 and 85823508.

It is not an unprimeable number, because it can be changed into a prime (85823567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19729 + ... + 23682.

It is an arithmetic number, because the mean of its divisors is an integer number (14325960).

Almost surely, 2^85823547 is an apocalyptic number.

85823547 is a deficient number, since it is larger than the sum of its proper divisors (28784133).

85823547 is a wasteful number, since it uses less digits than its factorization.

85823547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44073.

The product of its digits is 268800, while the sum is 42.

The square root of 85823547 is about 9264.0999023111. The cubic root of 85823547 is about 441.0984041079.

The spelling of 85823547 in words is "eighty-five million, eight hundred twenty-three thousand, five hundred forty-seven".