67028461 has 2 divisors, whose sum is σ = 67028462. Its totient is φ = 67028460.

The previous prime is 67028459. The next prime is 67028471. The reversal of 67028461 is 16482076.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63441225 + 3587236 = 7965^2 + 1894^2 .

It is a cyclic number.

It is not a de Polignac number, because 67028461 - 2¹ = 67028459 is a prime.

Together with 67028459, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67028471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33514230 + 33514231.

It is an arithmetic number, because the mean of its divisors is an integer number (33514231).

Almost surely, 2^67028461 is an apocalyptic number.

It is an amenable number.

67028461 is a deficient number, since it is larger than the sum of its proper divisors (1).

67028461 is an equidigital number, since it uses as much as digits as its factorization.

67028461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 67028461 is about 8187.0911195613. The cubic root of 67028461 is about 406.2123122119.

The spelling of 67028461 in words is "sixty-seven million, twenty-eight thousand, four hundred sixty-one".