84864505 has 8 divisors (see below), whose sum is σ = 111095424. Its totient is φ = 61719600.

The previous prime is 84864491. The next prime is 84864517. The reversal of 84864505 is 50546848.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84864505 - 2⁵ = 84864473 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 771441 + ... + 771550.

It is an arithmetic number, because the mean of its divisors is an integer number (13886928).

Almost surely, 2^84864505 is an apocalyptic number.

It is an amenable number.

84864505 is a deficient number, since it is larger than the sum of its proper divisors (26230919).

84864505 is a wasteful number, since it uses less digits than its factorization.

84864505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543007.

The product of its (nonzero) digits is 153600, while the sum is 40.

The square root of 84864505 is about 9212.1932784761. The cubic root of 84864505 is about 439.4492161296.

The spelling of 84864505 in words is "eighty-four million, eight hundred sixty-four thousand, five hundred five".