84660885 has 24 divisors (see below), whose sum is σ = 147269304. Its totient is φ = 44991360.

The previous prime is 84660883. The next prime is 84660887. The reversal of 84660885 is 58806648.

It is an interprime number because it is at equal distance from previous prime (84660883) and next prime (84660887).

It can be written as a sum of positive squares in 4 ways, for example, as 18173169 + 66487716 = 4263^2 + 8154^2 .

It is not a de Polignac number, because 84660885 - 2¹ = 84660883 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 84660885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84660883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9975 + ... + 16395.

It is an arithmetic number, because the mean of its divisors is an integer number (6136221).

Almost surely, 2^84660885 is an apocalyptic number.

It is an amenable number.

84660885 is a deficient number, since it is larger than the sum of its proper divisors (62608419).

84660885 is a wasteful number, since it uses less digits than its factorization.

84660885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6725 (or 6722 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The square root of 84660885 is about 9201.1349843375. The cubic root of 84660885 is about 439.0974698953.

It can be divided in two parts, 84 and 660885, that added together give a square (660969 = 813²).

The spelling of 84660885 in words is "eighty-four million, six hundred sixty thousand, eight hundred eighty-five".