6942401 has 2 divisors, whose sum is σ = 6942402. Its totient is φ = 6942400.

The previous prime is 6942379. The next prime is 6942413. The reversal of 6942401 is 1042496.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5382400 + 1560001 = 2320^2 + 1249^2 .

It is a cyclic number.

It is not a de Polignac number, because 6942401 - 2⁶ = 6942337 is a prime.

It is not a weakly prime, because it can be changed into another prime (6942431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3471200 + 3471201.

It is an arithmetic number, because the mean of its divisors is an integer number (3471201).

Almost surely, 2^6942401 is an apocalyptic number.

It is an amenable number.

6942401 is a deficient number, since it is larger than the sum of its proper divisors (1).

6942401 is an equidigital number, since it uses as much as digits as its factorization.

6942401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 6942401 is about 2634.8436386245. The cubic root of 6942401 is about 190.7669919767.

Adding to 6942401 its reverse (1042496), we get a palindrome (7984897).

The spelling of 6942401 in words is "six million, nine hundred forty-two thousand, four hundred one".