84220449 has 8 divisors (see below), whose sum is σ = 113343840. Its totient is φ = 55622016.

The previous prime is 84220447. The next prime is 84220453. The reversal of 84220449 is 94402248.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84220449 - 2¹ = 84220447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84220447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130864 + ... + 131505.

It is an arithmetic number, because the mean of its divisors is an integer number (14167980).

Almost surely, 2^84220449 is an apocalyptic number.

It is an amenable number.

84220449 is a deficient number, since it is larger than the sum of its proper divisors (29123391).

84220449 is a wasteful number, since it uses less digits than its factorization.

84220449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262479.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 84220449 is about 9177.1699886185. The cubic root of 84220449 is about 438.3346986164.

The spelling of 84220449 in words is "eighty-four million, two hundred twenty thousand, four hundred forty-nine".