3961972 has 12 divisors (see below), whose sum is σ = 7924000. Its totient is φ = 1697976.

The previous prime is 3961967. The next prime is 3961973. The reversal of 3961972 is 2791693.

3961972 is an admirable number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3961973) 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, 70722 + ... + 70777.

Almost surely, 2^3961972 is an apocalyptic number.

It is an amenable number.

3961972 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3961972 is a wasteful number, since it uses less digits than its factorization.

3961972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141510 (or 141508 counting only the distinct ones).

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

The square root of 3961972 is about 1990.4702961863. The cubic root of 3961972 is about 158.2354551727.

The spelling of 3961972 in words is "three million, nine hundred sixty-one thousand, nine hundred seventy-two".