3971970 has 64 divisors (see below), whose sum is σ = 10851840. Its totient is φ = 1033344.

The previous prime is 3971963. The next prime is 3971977. The reversal of 3971970 is 791793.

3971970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3971963) and next prime (3971977).

It is not an unprimeable number, because it can be changed into a prime (3971977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12534 + ... + 12846.

It is an arithmetic number, because the mean of its divisors is an integer number (169560).

Almost surely, 2^3971970 is an apocalyptic number.

3971970 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3971970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5425920).

3971970 is an abundant number, since it is smaller than the sum of its proper divisors (6879870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3971970 is a wasteful number, since it uses less digits than its factorization.

3971970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 11907, while the sum is 36.

The square root of 3971970 is about 1992.9801805337. The cubic root of 3971970 is about 158.3684452755.

The spelling of 3971970 in words is "three million, nine hundred seventy-one thousand, nine hundred seventy".