44100989 has 2 divisors, whose sum is σ = 44100990. Its totient is φ = 44100988.

The previous prime is 44100977. The next prime is 44101021. The reversal of 44100989 is 98900144.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29888089 + 14212900 = 5467^2 + 3770^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44100989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44100289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22050494 + 22050495.

It is an arithmetic number, because the mean of its divisors is an integer number (22050495).

Almost surely, 2^44100989 is an apocalyptic number.

It is an amenable number.

44100989 is a deficient number, since it is larger than the sum of its proper divisors (1).

44100989 is an equidigital number, since it uses as much as digits as its factorization.

44100989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 44100989 is about 6640.8575500458. The cubic root of 44100989 is about 353.3047228723.

The spelling of 44100989 in words is "forty-four million, one hundred thousand, nine hundred eighty-nine".