84224347 has 4 divisors (see below), whose sum is σ = 85605136. Its totient is φ = 82843560.

The previous prime is 84224311. The next prime is 84224351. The reversal of 84224347 is 74342248.

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-84224347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84204347) 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, 690303 + ... + 690424.

It is an arithmetic number, because the mean of its divisors is an integer number (21401284).

Almost surely, 2^84224347 is an apocalyptic number.

84224347 is a deficient number, since it is larger than the sum of its proper divisors (1380789).

84224347 is a wasteful number, since it uses less digits than its factorization.

84224347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380788.

The product of its digits is 43008, while the sum is 34.

The square root of 84224347 is about 9177.3823610003. The cubic root of 84224347 is about 438.3414610369.

It can be divided in two parts, 8422 and 4347, that added together give a square (12769 = 113²).

The spelling of 84224347 in words is "eighty-four million, two hundred twenty-four thousand, three hundred forty-seven".