84538571 has 16 divisors (see below), whose sum is σ = 94155264. Its totient is φ = 75409824.

The previous prime is 84538561. The next prime is 84538579. The reversal of 84538571 is 17583548.

It is a cyclic number.

It is not a de Polignac number, because 84538571 - 2¹⁰ = 84537547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84538579) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49880 + ... + 51546.

It is an arithmetic number, because the mean of its divisors is an integer number (5884704).

Almost surely, 2^84538571 is an apocalyptic number.

84538571 is a deficient number, since it is larger than the sum of its proper divisors (9616693).

84538571 is a wasteful number, since it uses less digits than its factorization.

84538571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810.

The product of its digits is 134400, while the sum is 41.

The square root of 84538571 is about 9194.4859018871. The cubic root of 84538571 is about 438.8859056311.

The spelling of 84538571 in words is "eighty-four million, five hundred thirty-eight thousand, five hundred seventy-one".