3881956 has 12 divisors (see below), whose sum is σ = 7316092. Its totient is φ = 1791648.

The previous prime is 3881953. The next prime is 3881959. The reversal of 3881956 is 6591883.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3881953) and next prime (3881959).

It can be written as a sum of positive squares in 2 ways, for example, as 1876900 + 2005056 = 1370^2 + 1416^2 .

It is not an unprimeable number, because it can be changed into a prime (3881951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37275 + ... + 37378.

Almost surely, 2^3881956 is an apocalyptic number.

It is an amenable number.

3881956 is a deficient number, since it is larger than the sum of its proper divisors (3434136).

3881956 is a wasteful number, since it uses less digits than its factorization.

3881956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74670 (or 74668 counting only the distinct ones).

The product of its digits is 51840, while the sum is 40.

The square root of 3881956 is about 1970.2680020748. The cubic root of 3881956 is about 157.1629611430.

The spelling of 3881956 in words is "three million, eight hundred eighty-one thousand, nine hundred fifty-six".