43364641 has 4 divisors (see below), whose sum is σ = 43495984. Its totient is φ = 43233300.

The previous prime is 43364623. The next prime is 43364647. The reversal of 43364641 is 14646334.

It is a happy number.

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 43364641 - 2⁵ = 43364609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43364647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65175 + ... + 65836.

It is an arithmetic number, because the mean of its divisors is an integer number (10873996).

Almost surely, 2^43364641 is an apocalyptic number.

It is an amenable number.

43364641 is a deficient number, since it is larger than the sum of its proper divisors (131343).

43364641 is a wasteful number, since it uses less digits than its factorization.

43364641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131342.

The product of its digits is 20736, while the sum is 31.

The square root of 43364641 is about 6585.1834446734. The cubic root of 43364641 is about 351.3273164737.

The spelling of 43364641 in words is "forty-three million, three hundred sixty-four thousand, six hundred forty-one".