43414721 has 4 divisors (see below), whose sum is σ = 49616832. Its totient is φ = 37212612.

The previous prime is 43414691. The next prime is 43414733. The reversal of 43414721 is 12741434.

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 43414721 - 2¹⁰ = 43413697 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43414751) 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, 3101045 + ... + 3101058.

It is an arithmetic number, because the mean of its divisors is an integer number (12404208).

Almost surely, 2^43414721 is an apocalyptic number.

It is an amenable number.

43414721 is a deficient number, since it is larger than the sum of its proper divisors (6202111).

43414721 is an equidigital number, since it uses as much as digits as its factorization.

43414721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6202110.

The product of its digits is 2688, while the sum is 26.

The square root of 43414721 is about 6588.9848231727. The cubic root of 43414721 is about 351.4625088248.

The spelling of 43414721 in words is "forty-three million, four hundred fourteen thousand, seven hundred twenty-one".