4271985 has 12 divisors (see below), whose sum is σ = 7404852. Its totient is φ = 2278368.

The previous prime is 4271963. The next prime is 4272001. The reversal of 4271985 is 5891724.

It can be written as a sum of positive squares in 2 ways, for example, as 2359296 + 1912689 = 1536^2 + 1383^2 .

It is not a de Polignac number, because 4271985 - 2¹² = 4267889 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47422 + ... + 47511.

It is an arithmetic number, because the mean of its divisors is an integer number (617071).

Almost surely, 2^4271985 is an apocalyptic number.

4271985 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4271985 is a deficient number, since it is larger than the sum of its proper divisors (3132867).

4271985 is a wasteful number, since it uses less digits than its factorization.

4271985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94944 (or 94941 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 4271985 is about 2066.8780805843. The cubic root of 4271985 is about 162.2594151879.

It can be divided in two parts, 42 and 71985, that added together give a palindrome (72027).

The spelling of 4271985 in words is "four million, two hundred seventy-one thousand, nine hundred eighty-five".