28959101 has 2 divisors, whose sum is σ = 28959102. Its totient is φ = 28959100.

The previous prime is 28959089. The next prime is 28959103. The reversal of 28959101 is 10195982.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18062500 + 10896601 = 4250^2 + 3301^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28959101 is a prime.

Together with 28959103, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28959103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14479550 + 14479551.

It is an arithmetic number, because the mean of its divisors is an integer number (14479551).

Almost surely, 2^28959101 is an apocalyptic number.

It is an amenable number.

28959101 is a deficient number, since it is larger than the sum of its proper divisors (1).

28959101 is an equidigital number, since it uses as much as digits as its factorization.

28959101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 35.

The square root of 28959101 is about 5381.3660905016. The cubic root of 28959101 is about 307.0871839446.

The spelling of 28959101 in words is "twenty-eight million, nine hundred fifty-nine thousand, one hundred one".