43496009 has 4 divisors (see below), whose sum is σ = 44421504. Its totient is φ = 42570516.

The previous prime is 43495961. The next prime is 43496017. The reversal of 43496009 is 90069434.

It is a happy number.

43496009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2^k-43496009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43496009.

It is not an unprimeable number, because it can be changed into a prime (43496029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462677 + ... + 462770.

It is an arithmetic number, because the mean of its divisors is an integer number (11105376).

Almost surely, 2^43496009 is an apocalyptic number.

It is an amenable number.

43496009 is a deficient number, since it is larger than the sum of its proper divisors (925495).

43496009 is an equidigital number, since it uses as much as digits as its factorization.

43496009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925494.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 43496009 is about 6595.1504152673. The cubic root of 43496009 is about 351.6817268794.

The spelling of 43496009 in words is "forty-three million, four hundred ninety-six thousand, nine".