8840401 has 2 divisors, whose sum is σ = 8840402. Its totient is φ = 8840400.

The previous prime is 8840393. The next prime is 8840407. The reversal of 8840401 is 1040488.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7706176 + 1134225 = 2776^2 + 1065^2 .

It is a cyclic number.

It is not a de Polignac number, because 8840401 - 2³ = 8840393 is a prime.

8840401 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (8840407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4420200 + 4420201.

It is an arithmetic number, because the mean of its divisors is an integer number (4420201).

Almost surely, 2^8840401 is an apocalyptic number.

It is an amenable number.

8840401 is a deficient number, since it is larger than the sum of its proper divisors (1).

8840401 is an equidigital number, since it uses as much as digits as its factorization.

8840401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 8840401 is about 2973.2811841466. The cubic root of 8840401 is about 206.7714889105.

Adding to 8840401 its reverse (1040488), we get a palindrome (9880889).

The spelling of 8840401 in words is "eight million, eight hundred forty thousand, four hundred one".