28851029 has 2 divisors, whose sum is σ = 28851030. Its totient is φ = 28851028.

The previous prime is 28851013. The next prime is 28851061. The reversal of 28851029 is 92015882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21022225 + 7828804 = 4585^2 + 2798^2 .

It is a cyclic number.

It is not a de Polignac number, because 28851029 - 2⁴ = 28851013 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28851029.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28851079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14425514 + 14425515.

It is an arithmetic number, because the mean of its divisors is an integer number (14425515).

Almost surely, 2^28851029 is an apocalyptic number.

It is an amenable number.

28851029 is a deficient number, since it is larger than the sum of its proper divisors (1).

28851029 is an equidigital number, since it uses as much as digits as its factorization.

28851029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 28851029 is about 5371.3153882452. The cubic root of 28851029 is about 306.7047031953.

The spelling of 28851029 in words is "twenty-eight million, eight hundred fifty-one thousand, twenty-nine".