7169985 has 32 divisors (see below), whose sum is σ = 12862080. Its totient is φ = 3789504.

The previous prime is 7169983. The next prime is 7169993. The reversal of 7169985 is 5899617.

It is not a de Polignac number, because 7169985 - 2¹ = 7169983 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 7169985.

It is not an unprimeable number, because it can be changed into a prime (7169983) 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 31 ways as a sum of consecutive naturals, for example, 23202 + ... + 23508.

It is an arithmetic number, because the mean of its divisors is an integer number (401940).

Almost surely, 2^7169985 is an apocalyptic number.

It is an amenable number.

7169985 is a deficient number, since it is larger than the sum of its proper divisors (5692095).

7169985 is a wasteful number, since it uses less digits than its factorization.

7169985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 488 counting only the distinct ones).

The product of its digits is 136080, while the sum is 45.

The square root of 7169985 is about 2677.6827668714. The cubic root of 7169985 is about 192.8291776029.

It can be divided in two parts, 716998 and 5, that added together give a triangular number (717003 = T₁₁₉₇).

The spelling of 7169985 in words is "seven million, one hundred sixty-nine thousand, nine hundred eighty-five".