28952111 has 2 divisors, whose sum is σ = 28952112. Its totient is φ = 28952110.

The previous prime is 28952087. The next prime is 28952113. The reversal of 28952111 is 11125982.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28952111 is a prime.

Together with 28952113, 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 (28952113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14476055 + 14476056.

It is an arithmetic number, because the mean of its divisors is an integer number (14476056).

Almost surely, 2^28952111 is an apocalyptic number.

28952111 is a deficient number, since it is larger than the sum of its proper divisors (1).

28952111 is an equidigital number, since it uses as much as digits as its factorization.

28952111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 29.

The square root of 28952111 is about 5380.7165879648. The cubic root of 28952111 is about 307.0624742440.

The spelling of 28952111 in words is "twenty-eight million, nine hundred fifty-two thousand, one hundred eleven".