28529101 has 2 divisors, whose sum is σ = 28529102. Its totient is φ = 28529100.

The previous prime is 28529041. The next prime is 28529113. The reversal of 28529101 is 10192582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27815076 + 714025 = 5274^2 + 845^2 .

It is a cyclic number.

It is not a de Polignac number, because 28529101 - 2¹¹ = 28527053 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 28529101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28529161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14264550 + 14264551.

It is an arithmetic number, because the mean of its divisors is an integer number (14264551).

Almost surely, 2^28529101 is an apocalyptic number.

It is an amenable number.

28529101 is a deficient number, since it is larger than the sum of its proper divisors (1).

28529101 is an equidigital number, since it uses as much as digits as its factorization.

28529101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 28529101 is about 5341.2639889824. The cubic root of 28529101 is about 305.5596675492.

The spelling of 28529101 in words is "twenty-eight million, five hundred twenty-nine thousand, one hundred one".