28269029 has 2 divisors, whose sum is σ = 28269030. Its totient is φ = 28269028.

The previous prime is 28269013. The next prime is 28269061. The reversal of 28269029 is 92096282.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15984004 + 12285025 = 3998^2 + 3505^2 .

It is a cyclic number.

It is not a de Polignac number, because 28269029 - 2⁴ = 28269013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28268983 and 28269001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28269629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14134514 + 14134515.

It is an arithmetic number, because the mean of its divisors is an integer number (14134515).

Almost surely, 2^28269029 is an apocalyptic number.

It is an amenable number.

28269029 is a deficient number, since it is larger than the sum of its proper divisors (1).

28269029 is an equidigital number, since it uses as much as digits as its factorization.

28269029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 28269029 is about 5316.8627027600. The cubic root of 28269029 is about 304.6283352436.

The spelling of 28269029 in words is "twenty-eight million, two hundred sixty-nine thousand, twenty-nine".