44799989 has 8 divisors (see below), whose sum is σ = 48315960. Its totient is φ = 41294016.

The previous prime is 44799973. The next prime is 44800001. The reversal of 44799989 is 98999744.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2002225 + 42797764 = 1415^2 + 6542^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44799989 - 2⁴ = 44799973 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 (44799919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8699 + ... + 12855.

It is an arithmetic number, because the mean of its divisors is an integer number (6039495).

Almost surely, 2^44799989 is an apocalyptic number.

It is an amenable number.

44799989 is a deficient number, since it is larger than the sum of its proper divisors (3515971).

44799989 is a wasteful number, since it uses less digits than its factorization.

44799989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4999.

The product of its digits is 5878656, while the sum is 59.

The square root of 44799989 is about 6693.2793905529. The cubic root of 44799989 is about 355.1615716288.

The spelling of 44799989 in words is "forty-four million, seven hundred ninety-nine thousand, nine hundred eighty-nine".