43972 has 6 divisors (see below), whose sum is σ = 76958. Its totient is φ = 21984.

The previous prime is 43969. The next prime is 43973. The reversal of 43972 is 27934.

43972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 30976 + 12996 = 176^2 + 114^2 .

It is not an unprimeable number, because it can be changed into a prime (43973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5493 + ... + 5500.

2⁴³⁹⁷² is an apocalyptic number.

It is an amenable number.

43972 is a deficient number, since it is larger than the sum of its proper divisors (32986).

43972 is a wasteful number, since it uses less digits than its factorization.

43972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10997 (or 10995 counting only the distinct ones).

The product of its digits is 1512, while the sum is 25.

The square root of 43972 is about 209.6950166313. The cubic root of 43972 is about 35.2959931465.

The spelling of 43972 in words is "forty-three thousand, nine hundred seventy-two".