6321401 has 2 divisors, whose sum is σ = 6321402. Its totient is φ = 6321400.

The previous prime is 6321379. The next prime is 6321407. The reversal of 6321401 is 1041236.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5067001 + 1254400 = 2251^2 + 1120^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6321401 is a prime.

It is a super-2 number, since 2×6321401² = 79920221205602, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6321401.

It is not a weakly prime, because it can be changed into another prime (6321407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3160700 + 3160701.

It is an arithmetic number, because the mean of its divisors is an integer number (3160701).

Almost surely, 2^6321401 is an apocalyptic number.

It is an amenable number.

6321401 is a deficient number, since it is larger than the sum of its proper divisors (1).

6321401 is an equidigital number, since it uses as much as digits as its factorization.

6321401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 6321401 is about 2514.2396464935. The cubic root of 6321401 is about 184.9003700218.

Adding to 6321401 its reverse (1041236), we get a palindrome (7362637).

The spelling of 6321401 in words is "six million, three hundred twenty-one thousand, four hundred one".