3969271 has 16 divisors (see below), whose sum is σ = 4515840. Its totient is φ = 3468960.

The previous prime is 3969269. The next prime is 3969289. The reversal of 3969271 is 1729693.

It is a cyclic number.

It is not a de Polignac number, because 3969271 - 2¹ = 3969269 is a prime.

It is a super-2 number, since 2×3969271² = 31510224542882, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3969271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3969221) 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 15 ways as a sum of consecutive naturals, for example, 13401 + ... + 13693.

It is an arithmetic number, because the mean of its divisors is an integer number (282240).

Almost surely, 2^3969271 is an apocalyptic number.

3969271 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3969271 is a deficient number, since it is larger than the sum of its proper divisors (546569).

3969271 is a wasteful number, since it uses less digits than its factorization.

3969271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366.

The product of its digits is 20412, while the sum is 37.

The square root of 3969271 is about 1992.3029388123. The cubic root of 3969271 is about 158.3325660782.

The spelling of 3969271 in words is "three million, nine hundred sixty-nine thousand, two hundred seventy-one".