44789621 has 2 divisors, whose sum is σ = 44789622. Its totient is φ = 44789620.

The previous prime is 44789599. The next prime is 44789627. The reversal of 44789621 is 12698744.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44702596 + 87025 = 6686^2 + 295^2 .

It is a cyclic number.

It is not a de Polignac number, because 44789621 - 2⁶ = 44789557 is a prime.

It is a super-2 number, since 2×44789621² = 4012220298647282, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44789627) 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 as a sum of consecutive naturals, namely, 22394810 + 22394811.

It is an arithmetic number, because the mean of its divisors is an integer number (22394811).

Almost surely, 2^44789621 is an apocalyptic number.

It is an amenable number.

44789621 is a deficient number, since it is larger than the sum of its proper divisors (1).

44789621 is an equidigital number, since it uses as much as digits as its factorization.

44789621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 41.

The square root of 44789621 is about 6692.5048375029. The cubic root of 44789621 is about 355.1341713298.

The spelling of 44789621 in words is "forty-four million, seven hundred eighty-nine thousand, six hundred twenty-one".