44684821 has 2 divisors, whose sum is σ = 44684822. Its totient is φ = 44684820.

The previous prime is 44684797. The next prime is 44684831. The reversal of 44684821 is 12848644.

44684821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32364721 + 12320100 = 5689^2 + 3510^2 .

It is a cyclic number.

It is not a de Polignac number, because 44684821 - 2⁹ = 44684309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44684831) 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 as a sum of consecutive naturals, namely, 22342410 + 22342411.

It is an arithmetic number, because the mean of its divisors is an integer number (22342411).

Almost surely, 2^44684821 is an apocalyptic number.

It is an amenable number.

44684821 is a deficient number, since it is larger than the sum of its proper divisors (1).

44684821 is an equidigital number, since it uses as much as digits as its factorization.

44684821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 49152, while the sum is 37.

The square root of 44684821 is about 6684.6705977183. The cubic root of 44684821 is about 354.8569707487.

The spelling of 44684821 in words is "forty-four million, six hundred eighty-four thousand, eight hundred twenty-one".