84505000 has 40 divisors (see below), whose sum is σ = 198006930. Its totient is φ = 33800000.

The previous prime is 84504997. The next prime is 84505007. The reversal of 84505000 is 50548.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 18992164 + 65512836 = 4358^2 + 8094^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (84505007) 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 9 ways as a sum of consecutive naturals, for example, 3451 + ... + 13450.

Almost surely, 2^84505000 is an apocalyptic number.

It is an amenable number.

84505000 is an abundant number, since it is smaller than the sum of its proper divisors (113501930).

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

84505000 is a wasteful number, since it uses less digits than its factorization.

84505000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16927 (or 16908 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 84505000 is about 9192.6601155487. The cubic root of 84505000 is about 438.8278028058.

Adding to 84505000 its reverse (50548), we get a palindrome (84555548).

It can be divided in two parts, 8450 and 5000, that multiplied together give a square (42250000 = 6500²).

The spelling of 84505000 in words is "eighty-four million, five hundred five thousand".