84252287 has 4 divisors (see below), whose sum is σ = 96288336. Its totient is φ = 72216240.

The previous prime is 84252271. The next prime is 84252307. The reversal of 84252287 is 78225248.

It is a happy number.

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 84252287 - 2⁴ = 84252271 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 84252287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84252227) 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, 6018014 + ... + 6018027.

It is an arithmetic number, because the mean of its divisors is an integer number (24072084).

Almost surely, 2^84252287 is an apocalyptic number.

84252287 is a deficient number, since it is larger than the sum of its proper divisors (12036049).

84252287 is a wasteful number, since it uses less digits than its factorization.

84252287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12036048.

The product of its digits is 71680, while the sum is 38.

The square root of 84252287 is about 9178.9044553258. The cubic root of 84252287 is about 438.3899264623.

The spelling of 84252287 in words is "eighty-four million, two hundred fifty-two thousand, two hundred eighty-seven".