28662133 has 2 divisors, whose sum is σ = 28662134. Its totient is φ = 28662132.

The previous prime is 28662113. The next prime is 28662143. The reversal of 28662133 is 33126682.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14577124 + 14085009 = 3818^2 + 3753^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28662133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28662095 and 28662104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28662103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14331066 + 14331067.

It is an arithmetic number, because the mean of its divisors is an integer number (14331067).

Almost surely, 2^28662133 is an apocalyptic number.

It is an amenable number.

28662133 is a deficient number, since it is larger than the sum of its proper divisors (1).

28662133 is an equidigital number, since it uses as much as digits as its factorization.

28662133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 31.

The square root of 28662133 is about 5353.7027373585. The cubic root of 28662133 is about 306.0338756693.

The spelling of 28662133 in words is "twenty-eight million, six hundred sixty-two thousand, one hundred thirty-three".