4085971 has 4 divisors (see below), whose sum is σ = 4118272. Its totient is φ = 4053672.

The previous prime is 4085957. The next prime is 4085981. The reversal of 4085971 is 1795804.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4085971 - 2¹³ = 4077779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4085941) 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 3 ways as a sum of consecutive naturals, for example, 15960 + ... + 16213.

It is an arithmetic number, because the mean of its divisors is an integer number (1029568).

Almost surely, 2^4085971 is an apocalyptic number.

4085971 is a deficient number, since it is larger than the sum of its proper divisors (32301).

4085971 is a wasteful number, since it uses less digits than its factorization.

4085971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32300.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 4085971 is about 2021.3784900409. The cubic root of 4085971 is about 159.8693073380.

The spelling of 4085971 in words is "four million, eighty-five thousand, nine hundred seventy-one".