44563989 has 4 divisors (see below), whose sum is σ = 59418656. Its totient is φ = 29709324.

The previous prime is 44563933. The next prime is 44563993. The reversal of 44563989 is 98936544.

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 not a de Polignac number, because 44563989 - 2¹¹ = 44561941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44563999) 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, 7427329 + ... + 7427334.

It is an arithmetic number, because the mean of its divisors is an integer number (14854664).

Almost surely, 2^44563989 is an apocalyptic number.

It is an amenable number.

44563989 is a deficient number, since it is larger than the sum of its proper divisors (14854667).

44563989 is a wasteful number, since it uses less digits than its factorization.

44563989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14854666.

The product of its digits is 933120, while the sum is 48.

The square root of 44563989 is about 6675.6264874542. The cubic root of 44563989 is about 354.5368263575.

The spelling of 44563989 in words is "forty-four million, five hundred sixty-three thousand, nine hundred eighty-nine".