84505868 has 6 divisors (see below), whose sum is σ = 147885276. Its totient is φ = 42252932.

The previous prime is 84505867. The next prime is 84505919. The reversal of 84505868 is 86850548.

It is not an unprimeable number, because it can be changed into a prime (84505867) 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 as a sum of consecutive naturals, namely, 10563230 + ... + 10563237.

It is an arithmetic number, because the mean of its divisors is an integer number (24647546).

Almost surely, 2^84505868 is an apocalyptic number.

It is an amenable number.

84505868 is a deficient number, since it is larger than the sum of its proper divisors (63379408).

84505868 is a wasteful number, since it uses less digits than its factorization.

84505868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21126471 (or 21126469 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 44.

The square root of 84505868 is about 9192.7073270066. The cubic root of 84505868 is about 438.8293052858.

The spelling of 84505868 in words is "eighty-four million, five hundred five thousand, eight hundred sixty-eight".