84504665 has 12 divisors (see below), whose sum is σ = 117961956. Its totient is φ = 57945888.

The previous prime is 84504661. The next prime is 84504733. The reversal of 84504665 is 56640548.

It can be written as a sum of positive squares in 2 ways, for example, as 62900761 + 21603904 = 7931^2 + 4648^2 .

It is not a de Polignac number, because 84504665 - 2² = 84504661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84504661) 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 11 ways as a sum of consecutive naturals, for example, 172214 + ... + 172703.

It is an arithmetic number, because the mean of its divisors is an integer number (9830163).

Almost surely, 2^84504665 is an apocalyptic number.

It is an amenable number.

84504665 is a deficient number, since it is larger than the sum of its proper divisors (33457291).

84504665 is a wasteful number, since it uses less digits than its factorization.

84504665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344936 (or 344929 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 38.

The square root of 84504665 is about 9192.6418944719. The cubic root of 84504665 is about 438.8272229288.

The spelling of 84504665 in words is "eighty-four million, five hundred four thousand, six hundred sixty-five".