84272255 has 4 divisors (see below), whose sum is σ = 101126712. Its totient is φ = 67417800.

The previous prime is 84272249. The next prime is 84272257. The reversal of 84272255 is 55227248.

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

It is not a de Polignac number, because 84272255 - 2⁶ = 84272191 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 (84272257) 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, 8427221 + ... + 8427230.

It is an arithmetic number, because the mean of its divisors is an integer number (25281678).

Almost surely, 2^84272255 is an apocalyptic number.

84272255 is a deficient number, since it is larger than the sum of its proper divisors (16854457).

84272255 is a wasteful number, since it uses less digits than its factorization.

84272255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16854456.

The product of its digits is 44800, while the sum is 35.

The square root of 84272255 is about 9179.9921023931. The cubic root of 84272255 is about 438.4245568915.

The spelling of 84272255 in words is "eighty-four million, two hundred seventy-two thousand, two hundred fifty-five".