43970 has 8 divisors (see below), whose sum is σ = 79164. Its totient is φ = 17584.

The previous prime is 43969. The next prime is 43973. The reversal of 43970 is 7934.

43970 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 2 ways, for example, as 43681 + 289 = 209^2 + 17^2 .

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

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 in 3 ways as a sum of consecutive naturals, for example, 2189 + ... + 2208.

2⁴³⁹⁷⁰ is an apocalyptic number.

43970 is a deficient number, since it is larger than the sum of its proper divisors (35194).

43970 is a wasteful number, since it uses less digits than its factorization.

43970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4404.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 43970 is about 209.6902477465. The cubic root of 43970 is about 35.2954580101.

The spelling of 43970 in words is "forty-three thousand, nine hundred seventy".