84405448 has 32 divisors (see below), whose sum is σ = 167112000. Its totient is φ = 39856320.

The previous prime is 84405443. The next prime is 84405449. The reversal of 84405448 is 84450448.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (84405443) 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 7 ways as a sum of consecutive naturals, for example, 63333 + ... + 64651.

It is an arithmetic number, because the mean of its divisors is an integer number (5222250).

Almost surely, 2^84405448 is an apocalyptic number.

It is an amenable number.

84405448 is a deficient number, since it is larger than the sum of its proper divisors (82706552).

84405448 is a wasteful number, since it uses less digits than its factorization.

84405448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1765 (or 1761 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 37.

The square root of 84405448 is about 9187.2437651344. The cubic root of 84405448 is about 438.6554131971.

The spelling of 84405448 in words is "eighty-four million, four hundred five thousand, four hundred forty-eight".