3961269 has 12 divisors (see below), whose sum is σ = 6162156. Its totient is φ = 2437632.

The previous prime is 3961261. The next prime is 3961271. The reversal of 3961269 is 9621693.

3961269 is a `hidden beast` number, since 39 + 612 + 6 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2722500 + 1238769 = 1650^2 + 1113^2 .

It is not a de Polignac number, because 3961269 - 2³ = 3961261 is a prime.

It is a super-2 number, since 2×3961269² = 31383304180722, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3961261) 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 11 ways as a sum of consecutive naturals, for example, 16812 + ... + 17045.

It is an arithmetic number, because the mean of its divisors is an integer number (513513).

Almost surely, 2^3961269 is an apocalyptic number.

3961269 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3961269 is a deficient number, since it is larger than the sum of its proper divisors (2200887).

3961269 is a wasteful number, since it uses less digits than its factorization.

3961269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33876 (or 33873 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 3961269 is about 1990.2936969201. The cubic root of 3961269 is about 158.2260956833.

The spelling of 3961269 in words is "three million, nine hundred sixty-one thousand, two hundred sixty-nine".