6612401 has 2 divisors, whose sum is σ = 6612402. Its totient is φ = 6612400.

The previous prime is 6612391. The next prime is 6612427. The reversal of 6612401 is 1042166.

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., 6451600 + 160801 = 2540^2 + 401^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6612401 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6612451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3306200 + 3306201.

It is an arithmetic number, because the mean of its divisors is an integer number (3306201).

Almost surely, 2^6612401 is an apocalyptic number.

It is an amenable number.

6612401 is a deficient number, since it is larger than the sum of its proper divisors (1).

6612401 is an equidigital number, since it uses as much as digits as its factorization.

6612401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 6612401 is about 2571.4589244240. The cubic root of 6612401 is about 187.6951544378.

Adding to 6612401 its reverse (1042166), we get a palindrome (7654567).

The spelling of 6612401 in words is "six million, six hundred twelve thousand, four hundred one".