28002529 has 2 divisors, whose sum is σ = 28002530. Its totient is φ = 28002528.

The previous prime is 28002511. The next prime is 28002539. The reversal of 28002529 is 92520082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26501904 + 1500625 = 5148^2 + 1225^2 .

It is a cyclic number.

It is not a de Polignac number, because 28002529 - 2¹⁵ = 27969761 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 28002497 and 28002506.

It is not a weakly prime, because it can be changed into another prime (28002509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14001264 + 14001265.

It is an arithmetic number, because the mean of its divisors is an integer number (14001265).

Almost surely, 2^28002529 is an apocalyptic number.

It is an amenable number.

28002529 is a deficient number, since it is larger than the sum of its proper divisors (1).

28002529 is an equidigital number, since it uses as much as digits as its factorization.

28002529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 28002529 is about 5291.7415847715. The cubic root of 28002529 is about 303.6680392141.

It can be divided in two parts, 2800 and 2529, that added together give a square (5329 = 73²).

The spelling of 28002529 in words is "twenty-eight million, two thousand, five hundred twenty-nine".