65321401 has 2 divisors, whose sum is σ = 65321402. Its totient is φ = 65321400.

The previous prime is 65321393. The next prime is 65321413. The reversal of 65321401 is 10412356.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46172025 + 19149376 = 6795^2 + 4376^2 .

It is a cyclic number.

It is not a de Polignac number, because 65321401 - 2³ = 65321393 is a prime.

It is not a weakly prime, because it can be changed into another prime (65321441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32660700 + 32660701.

It is an arithmetic number, because the mean of its divisors is an integer number (32660701).

Almost surely, 2^65321401 is an apocalyptic number.

It is an amenable number.

65321401 is a deficient number, since it is larger than the sum of its proper divisors (1).

65321401 is an equidigital number, since it uses as much as digits as its factorization.

65321401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 65321401 is about 8082.1656132500. The cubic root of 65321401 is about 402.7341867237.

Adding to 65321401 its reverse (10412356), we get a palindrome (75733757).

The spelling of 65321401 in words is "sixty-five million, three hundred twenty-one thousand, four hundred one".