44421617 has 2 divisors, whose sum is σ = 44421618. Its totient is φ = 44421616.

The previous prime is 44421613. The next prime is 44421653. The reversal of 44421617 is 71612444.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32615521 + 11806096 = 5711^2 + 3436^2 .

It is a cyclic number.

It is not a de Polignac number, because 44421617 - 2² = 44421613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44421617.

It is not a weakly prime, because it can be changed into another prime (44421613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22210808 + 22210809.

It is an arithmetic number, because the mean of its divisors is an integer number (22210809).

Almost surely, 2^44421617 is an apocalyptic number.

It is an amenable number.

44421617 is a deficient number, since it is larger than the sum of its proper divisors (1).

44421617 is an equidigital number, since it uses as much as digits as its factorization.

44421617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 29.

The square root of 44421617 is about 6664.9543884411. The cubic root of 44421617 is about 354.1588682266.

The spelling of 44421617 in words is "forty-four million, four hundred twenty-one thousand, six hundred seventeen".