43973712 has 80 divisors (see below), whose sum is σ = 127313280. Its totient is φ = 14531328.

The previous prime is 43973711. The next prime is 43973719. The reversal of 43973712 is 21737934.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43973711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58813 + ... + 59555.

It is an arithmetic number, because the mean of its divisors is an integer number (1591416).

Almost surely, 2^43973712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43973712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63656640).

43973712 is an abundant number, since it is smaller than the sum of its proper divisors (83339568).

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

43973712 is a wasteful number, since it uses less digits than its factorization.

43973712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897 (or 885 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The square root of 43973712 is about 6631.2677520969. The cubic root of 43973712 is about 352.9645121041.

The spelling of 43973712 in words is "forty-three million, nine hundred seventy-three thousand, seven hundred twelve".