28797151 has 2 divisors, whose sum is σ = 28797152. Its totient is φ = 28797150.

The previous prime is 28797149. The next prime is 28797157. The reversal of 28797151 is 15179782.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28797151 - 2¹ = 28797149 is a prime.

Together with 28797149, 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 (28797157) 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, 14398575 + 14398576.

It is an arithmetic number, because the mean of its divisors is an integer number (14398576).

Almost surely, 2^28797151 is an apocalyptic number.

28797151 is a deficient number, since it is larger than the sum of its proper divisors (1).

28797151 is an equidigital number, since it uses as much as digits as its factorization.

28797151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 40.

The square root of 28797151 is about 5366.2976995318. The cubic root of 28797151 is about 306.5136651446.

The spelling of 28797151 in words is "twenty-eight million, seven hundred ninety-seven thousand, one hundred fifty-one".