4409621977 has 2 divisors, whose sum is σ = 4409621978. Its totient is φ = 4409621976.

The previous prime is 4409621933. The next prime is 4409621987. The reversal of 4409621977 is 7791269044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3530855241 + 878766736 = 59421^2 + 29644^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4409621977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4409621977.

It is not a weakly prime, because it can be changed into another prime (4409621987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2204810988 + 2204810989.

It is an arithmetic number, because the mean of its divisors is an integer number (2204810989).

Almost surely, 2^4409621977 is an apocalyptic number.

It is an amenable number.

4409621977 is a deficient number, since it is larger than the sum of its proper divisors (1).

4409621977 is an equidigital number, since it uses as much as digits as its factorization.

4409621977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 762048, while the sum is 49.

The square root of 4409621977 is about 66404.9845794726. The cubic root of 4409621977 is about 1639.8361398103.

The spelling of 4409621977 in words is "four billion, four hundred nine million, six hundred twenty-one thousand, nine hundred seventy-seven".