43997601 has 8 divisors (see below), whose sum is σ = 58700160. Its totient is φ = 29313392.

The previous prime is 43997573. The next prime is 43997609. The reversal of 43997601 is 10679934.

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

It is a cyclic number.

It is not a de Polignac number, because 43997601 - 2⁶ = 43997537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43997601.

It is not an unprimeable number, because it can be changed into a prime (43997609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2635 + ... + 9743.

It is an arithmetic number, because the mean of its divisors is an integer number (7337520).

Almost surely, 2^43997601 is an apocalyptic number.

It is an amenable number.

43997601 is a deficient number, since it is larger than the sum of its proper divisors (14702559).

43997601 is a wasteful number, since it uses less digits than its factorization.

43997601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9175.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 43997601 is about 6633.0687468170. The cubic root of 43997601 is about 353.0284172753.

The spelling of 43997601 in words is "forty-three million, nine hundred ninety-seven thousand, six hundred one".