85523047 has 4 divisors (see below), whose sum is σ = 90024280. Its totient is φ = 81021816.

The previous prime is 85523041. The next prime is 85523071. The reversal of 85523047 is 74032558.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74032558 = 2 ⋅37016279.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85523047 is a prime.

It is a super-3 number, since 3×85523047³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85523041) 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, 2250588 + ... + 2250625.

It is an arithmetic number, because the mean of its divisors is an integer number (22506070).

Almost surely, 2^85523047 is an apocalyptic number.

85523047 is a deficient number, since it is larger than the sum of its proper divisors (4501233).

85523047 is a wasteful number, since it uses less digits than its factorization.

85523047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4501232.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 85523047 is about 9247.8671595131. The cubic root of 85523047 is about 440.5829858302.

The spelling of 85523047 in words is "eighty-five million, five hundred twenty-three thousand, forty-seven".