85145847 has 8 divisors (see below), whose sum is σ = 113705856. Its totient is φ = 56674872.

The previous prime is 85145831. The next prime is 85145861. The reversal of 85145847 is 74854158.

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

It is not a de Polignac number, because 85145847 - 2⁴ = 85145831 is a prime.

It is a super-2 number, since 2×85145847² = 14499630522694818, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85145799 and 85145808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85145887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19993 + ... + 23874.

It is an arithmetic number, because the mean of its divisors is an integer number (14213232).

Almost surely, 2^85145847 is an apocalyptic number.

85145847 is a deficient number, since it is larger than the sum of its proper divisors (28560009).

85145847 is a wasteful number, since it uses less digits than its factorization.

85145847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44517.

The product of its digits is 179200, while the sum is 42.

The square root of 85145847 is about 9227.4507313775. The cubic root of 85145847 is about 439.9342997632.

The spelling of 85145847 in words is "eighty-five million, one hundred forty-five thousand, eight hundred forty-seven".