84224755 has 4 divisors (see below), whose sum is σ = 101069712. Its totient is φ = 67379800.

The previous prime is 84224753. The next prime is 84224761. The reversal of 84224755 is 55742248.

It is a happy number.

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

It is not a de Polignac number, because 84224755 - 2¹ = 84224753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84224753) 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, 8422471 + ... + 8422480.

It is an arithmetic number, because the mean of its divisors is an integer number (25267428).

Almost surely, 2^84224755 is an apocalyptic number.

84224755 is a deficient number, since it is larger than the sum of its proper divisors (16844957).

84224755 is a wasteful number, since it uses less digits than its factorization.

84224755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16844956.

The product of its digits is 89600, while the sum is 37.

The square root of 84224755 is about 9177.4045895340. The cubic root of 84224755 is about 438.3421688411.

The spelling of 84224755 in words is "eighty-four million, two hundred twenty-four thousand, seven hundred fifty-five".