84004518 has 16 divisors (see below), whose sum is σ = 180932976. Its totient is φ = 25847520.

The previous prime is 84004517. The next prime is 84004537. The reversal of 84004518 is 81540048.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84004517) 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, 538413 + ... + 538568.

It is an arithmetic number, because the mean of its divisors is an integer number (11308311).

Almost surely, 2^84004518 is an apocalyptic number.

84004518 is an abundant number, since it is smaller than the sum of its proper divisors (96928458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84004518 is a wasteful number, since it uses less digits than its factorization.

84004518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076999.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 84004518 is about 9165.3978637046. The cubic root of 84004518 is about 437.9597657002.

The spelling of 84004518 in words is "eighty-four million, four thousand, five hundred eighteen".