43700641 has 4 divisors (see below), whose sum is σ = 43896832. Its totient is φ = 43504452.

The previous prime is 43700639. The next prime is 43700653. The reversal of 43700641 is 14600734.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14600734 = 2 ⋅7300367.

It is a cyclic number.

It is not a de Polignac number, because 43700641 - 2¹ = 43700639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43700611) 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, 97761 + ... + 98206.

It is an arithmetic number, because the mean of its divisors is an integer number (10974208).

Almost surely, 2^43700641 is an apocalyptic number.

It is an amenable number.

43700641 is a deficient number, since it is larger than the sum of its proper divisors (196191).

43700641 is a wasteful number, since it uses less digits than its factorization.

43700641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196190.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 43700641 is about 6610.6460349954. The cubic root of 43700641 is about 352.2323733595.

The spelling of 43700641 in words is "forty-three million, seven hundred thousand, six hundred forty-one".