28667351 has 2 divisors, whose sum is σ = 28667352. Its totient is φ = 28667350.

The previous prime is 28667297. The next prime is 28667363. The reversal of 28667351 is 15376682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28667351 - 2¹⁰ = 28666327 is a prime.

It is a super-3 number, since 3×28667351³ (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 (28667851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14333675 + 14333676.

It is an arithmetic number, because the mean of its divisors is an integer number (14333676).

Almost surely, 2^28667351 is an apocalyptic number.

28667351 is a deficient number, since it is larger than the sum of its proper divisors (1).

28667351 is an equidigital number, since it uses as much as digits as its factorization.

28667351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 38.

The square root of 28667351 is about 5354.1900414535. The cubic root of 28667351 is about 306.0524459070.

The spelling of 28667351 in words is "twenty-eight million, six hundred sixty-seven thousand, three hundred fifty-one".