84405504 has 36 divisors (see below), whose sum is σ = 224643776. Its totient is φ = 28134912.

The previous prime is 84405499. The next prime is 84405509. The reversal of 84405504 is 40550448.

It is an interprime number because it is at equal distance from previous prime (84405499) and next prime (84405509).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84405509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54184 + ... + 55719.

Almost surely, 2^84405504 is an apocalyptic number.

It is an amenable number.

84405504 is an abundant number, since it is smaller than the sum of its proper divisors (140238272).

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

84405504 is a wasteful number, since it uses less digits than its factorization.

84405504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109922 (or 109908 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 84405504 is about 9187.2468128379. The cubic root of 84405504 is about 438.6555102078.

The spelling of 84405504 in words is "eighty-four million, four hundred five thousand, five hundred four".