84384406 has 4 divisors (see below), whose sum is σ = 126576612. Its totient is φ = 42192202.

The previous prime is 84384367. The next prime is 84384431. The reversal of 84384406 is 60448348.

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

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 as a sum of consecutive naturals, namely, 21096100 + ... + 21096103.

It is an arithmetic number, because the mean of its divisors is an integer number (31644153).

Almost surely, 2^84384406 is an apocalyptic number.

84384406 is a deficient number, since it is larger than the sum of its proper divisors (42192206).

84384406 is a wasteful number, since it uses less digits than its factorization.

84384406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42192205.

The product of its (nonzero) digits is 73728, while the sum is 37.

The square root of 84384406 is about 9186.0985189579. The cubic root of 84384406 is about 438.6189583846.

The spelling of 84384406 in words is "eighty-four million, three hundred eighty-four thousand, four hundred six".