84552287 has 4 divisors (see below), whose sum is σ = 84748896. Its totient is φ = 84355680.

The previous prime is 84552277. The next prime is 84552317. The reversal of 84552287 is 78225548.

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-84552287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84552217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97658 + ... + 98519.

It is an arithmetic number, because the mean of its divisors is an integer number (21187224).

Almost surely, 2^84552287 is an apocalyptic number.

84552287 is a deficient number, since it is larger than the sum of its proper divisors (196609).

84552287 is a wasteful number, since it uses less digits than its factorization.

84552287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196608.

The product of its digits is 179200, while the sum is 41.

The square root of 84552287 is about 9195.2317534688. The cubic root of 84552287 is about 438.9096400973.

The spelling of 84552287 in words is "eighty-four million, five hundred fifty-two thousand, two hundred eighty-seven".