84404518 has 12 divisors (see below), whose sum is σ = 139163220. Its totient is φ = 38365580.

The previous prime is 84404501. The next prime is 84404521. The reversal of 84404518 is 81540448.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 174148 + ... + 174631.

It is an arithmetic number, because the mean of its divisors is an integer number (11596935).

Almost surely, 2^84404518 is an apocalyptic number.

84404518 is a deficient number, since it is larger than the sum of its proper divisors (54758702).

84404518 is a wasteful number, since it uses less digits than its factorization.

84404518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348803 (or 348792 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 34.

The square root of 84404518 is about 9187.1931513384. The cubic root of 84404518 is about 438.6538021200.

The spelling of 84404518 in words is "eighty-four million, four hundred four thousand, five hundred eighteen".