67280401 has 2 divisors, whose sum is σ = 67280402. Its totient is φ = 67280400.

The previous prime is 67280399. The next prime is 67280413. The reversal of 67280401 is 10408276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67240000 + 40401 = 8200^2 + 201^2 .

It is a cyclic number.

It is not a de Polignac number, because 67280401 - 2¹ = 67280399 is a prime.

Together with 67280399, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67280401.

It is not a weakly prime, because it can be changed into another prime (67280471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33640200 + 33640201.

It is an arithmetic number, because the mean of its divisors is an integer number (33640201).

Almost surely, 2^67280401 is an apocalyptic number.

It is an amenable number.

67280401 is a deficient number, since it is larger than the sum of its proper divisors (1).

67280401 is an equidigital number, since it uses as much as digits as its factorization.

67280401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 67280401 is about 8202.4631056775. The cubic root of 67280401 is about 406.7206195400.

Adding to 67280401 its reverse (10408276), we get a palindrome (77688677).

The spelling of 67280401 in words is "sixty-seven million, two hundred eighty thousand, four hundred one".