28067461 has 2 divisors, whose sum is σ = 28067462. Its totient is φ = 28067460.

The previous prime is 28067441. The next prime is 28067471. The reversal of 28067461 is 16476082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22982436 + 5085025 = 4794^2 + 2255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28067461 is a prime.

It is a super-3 number, since 3×28067461³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28067441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14033730 + 14033731.

It is an arithmetic number, because the mean of its divisors is an integer number (14033731).

Almost surely, 2^28067461 is an apocalyptic number.

It is an amenable number.

28067461 is a deficient number, since it is larger than the sum of its proper divisors (1).

28067461 is an equidigital number, since it uses as much as digits as its factorization.

28067461 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 28067461 is about 5297.8732525420. The cubic root of 28067461 is about 303.9025722244.

The spelling of 28067461 in words is "twenty-eight million, sixty-seven thousand, four hundred sixty-one".