4169985 has 8 divisors (see below), whose sum is σ = 6672000. Its totient is φ = 2223984.

The previous prime is 4169953. The next prime is 4170007. The reversal of 4169985 is 5899614.

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

It is not a de Polignac number, because 4169985 - 2⁵ = 4169953 is a prime.

It is a Curzon number.

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, 138985 + ... + 139014.

It is an arithmetic number, because the mean of its divisors is an integer number (834000).

Almost surely, 2^4169985 is an apocalyptic number.

It is an amenable number.

4169985 is a deficient number, since it is larger than the sum of its proper divisors (2502015).

4169985 is a wasteful number, since it uses less digits than its factorization.

4169985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278007.

The product of its digits is 77760, while the sum is 42.

The square root of 4169985 is about 2042.0541128971. The cubic root of 4169985 is about 160.9576036406.

It can be divided in two parts, 416 and 9985, that added together give a palindrome (10401).

The spelling of 4169985 in words is "four million, one hundred sixty-nine thousand, nine hundred eighty-five".