85427547 has 4 divisors (see below), whose sum is σ = 113903400. Its totient is φ = 56951696.

The previous prime is 85427539. The next prime is 85427549. The reversal of 85427547 is 74572458.

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

It is a cyclic number.

It is not a de Polignac number, because 85427547 - 2³ = 85427539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85427499 and 85427508.

It is not an unprimeable number, because it can be changed into a prime (85427549) 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, 14237922 + ... + 14237927.

It is an arithmetic number, because the mean of its divisors is an integer number (28475850).

Almost surely, 2^85427547 is an apocalyptic number.

85427547 is a deficient number, since it is larger than the sum of its proper divisors (28475853).

85427547 is a wasteful number, since it uses less digits than its factorization.

85427547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28475852.

The product of its digits is 313600, while the sum is 42.

The square root of 85427547 is about 9242.7023645685. The cubic root of 85427547 is about 440.4189312362.

The spelling of 85427547 in words is "eighty-five million, four hundred twenty-seven thousand, five hundred forty-seven".