84865505 has 8 divisors (see below), whose sum is σ = 102983400. Its totient is φ = 67129216.

The previous prime is 84865489. The next prime is 84865537. The reversal of 84865505 is 50556848.

It can be written as a sum of positive squares in 4 ways, for example, as 3125824 + 81739681 = 1768^2 + 9041^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 84865505 - 2⁴ = 84865489 is a prime.

It is a super-3 number, since 3×84865505³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94910 + ... + 95799.

It is an arithmetic number, because the mean of its divisors is an integer number (12872925).

Almost surely, 2^84865505 is an apocalyptic number.

It is an amenable number.

84865505 is a deficient number, since it is larger than the sum of its proper divisors (18117895).

84865505 is a wasteful number, since it uses less digits than its factorization.

84865505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190803.

The product of its (nonzero) digits is 192000, while the sum is 41.

The square root of 84865505 is about 9212.2475542074. The cubic root of 84865505 is about 439.4509422046.

The spelling of 84865505 in words is "eighty-four million, eight hundred sixty-five thousand, five hundred five".