3963971 has 8 divisors (see below), whose sum is σ = 4374000. Its totient is φ = 3562240.

The previous prime is 3963959. The next prime is 3963977. The reversal of 3963971 is 1793693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-3963971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3963977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1046 + ... + 3003.

It is an arithmetic number, because the mean of its divisors is an integer number (546750).

Almost surely, 2^3963971 is an apocalyptic number.

3963971 is a deficient number, since it is larger than the sum of its proper divisors (410029).

3963971 is a wasteful number, since it uses less digits than its factorization.

3963971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4149.

The product of its digits is 30618, while the sum is 38.

The square root of 3963971 is about 1990.9723754990. The cubic root of 3963971 is about 158.2620630918.

It can be divided in two parts, 396 and 3971, that multiplied together give a square (1572516 = 1254²).

The spelling of 3963971 in words is "three million, nine hundred sixty-three thousand, nine hundred seventy-one".