43650689 has 4 divisors (see below), whose sum is σ = 43846656. Its totient is φ = 43454724.

The previous prime is 43650683. The next prime is 43650709. The reversal of 43650689 is 98605634.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43650689 - 2¹⁶ = 43585153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43650683) 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, 97649 + ... + 98094.

It is an arithmetic number, because the mean of its divisors is an integer number (10961664).

Almost surely, 2^43650689 is an apocalyptic number.

It is an amenable number.

43650689 is a deficient number, since it is larger than the sum of its proper divisors (195967).

43650689 is a wasteful number, since it uses less digits than its factorization.

43650689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195966.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 43650689 is about 6606.8668065884. The cubic root of 43650689 is about 352.0981158350.

The spelling of 43650689 in words is "forty-three million, six hundred fifty thousand, six hundred eighty-nine".