8718401 has 2 divisors, whose sum is σ = 8718402. Its totient is φ = 8718400.

The previous prime is 8718377. The next prime is 8718407. The reversal of 8718401 is 1048178.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8708401 + 10000 = 2951^2 + 100^2 .

It is a cyclic number.

It is not a de Polignac number, because 8718401 - 2²² = 4524097 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (8718407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4359200 + 4359201.

It is an arithmetic number, because the mean of its divisors is an integer number (4359201).

Almost surely, 2^8718401 is an apocalyptic number.

It is an amenable number.

8718401 is a deficient number, since it is larger than the sum of its proper divisors (1).

8718401 is an equidigital number, since it uses as much as digits as its factorization.

8718401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 8718401 is about 2952.6938547706. The cubic root of 8718401 is about 205.8159115146.

It can be divided in two parts, 8718 and 401, that added together give a palindrome (9119).

The spelling of 8718401 in words is "eight million, seven hundred eighteen thousand, four hundred one".