85472843 has 4 divisors (see below), whose sum is σ = 85533360. Its totient is φ = 85412328.

The previous prime is 85472813. The next prime is 85472851. The reversal of 85472843 is 34827458.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85472843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85472843.

It is not an unprimeable number, because it can be changed into a prime (85472813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28088 + ... + 30981.

It is an arithmetic number, because the mean of its divisors is an integer number (21383340).

Almost surely, 2^85472843 is an apocalyptic number.

85472843 is a deficient number, since it is larger than the sum of its proper divisors (60517).

85472843 is a wasteful number, since it uses less digits than its factorization.

85472843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60516.

The product of its digits is 215040, while the sum is 41.

The square root of 85472843 is about 9245.1524054501. The cubic root of 85472843 is about 440.4967581659.

The spelling of 85472843 in words is "eighty-five million, four hundred seventy-two thousand, eight hundred forty-three".