44209897 has 4 divisors (see below), whose sum is σ = 45044100. Its totient is φ = 43375696.

The previous prime is 44209889. The next prime is 44209909. The reversal of 44209897 is 79890244.

44209897 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.

It can be written as a sum of positive squares in 2 ways, for example, as 34821801 + 9388096 = 5901^2 + 3064^2 .

It is a cyclic number.

It is not a de Polignac number, because 44209897 - 2³ = 44209889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44209807) 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, 417022 + ... + 417127.

It is an arithmetic number, because the mean of its divisors is an integer number (11261025).

Almost surely, 2^44209897 is an apocalyptic number.

It is an amenable number.

44209897 is a deficient number, since it is larger than the sum of its proper divisors (834203).

44209897 is an equidigital number, since it uses as much as digits as its factorization.

44209897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834202.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 44209897 is about 6649.0523384916. The cubic root of 44209897 is about 353.5953140908.

The spelling of 44209897 in words is "forty-four million, two hundred nine thousand, eight hundred ninety-seven".