28828901 has 2 divisors, whose sum is σ = 28828902. Its totient is φ = 28828900.

The previous prime is 28828861. The next prime is 28828937. The reversal of 28828901 is 10982882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27552001 + 1276900 = 5249^2 + 1130^2 .

It is a cyclic number.

It is not a de Polignac number, because 28828901 - 2⁶ = 28828837 is a prime.

It is a super-2 number, since 2×28828901² = 1662211065735602, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28828801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14414450 + 14414451.

It is an arithmetic number, because the mean of its divisors is an integer number (14414451).

Almost surely, 2^28828901 is an apocalyptic number.

It is an amenable number.

28828901 is a deficient number, since it is larger than the sum of its proper divisors (1).

28828901 is an equidigital number, since it uses as much as digits as its factorization.

28828901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 28828901 is about 5369.2551624969. The cubic root of 28828901 is about 306.6262715906.

It can be divided in two parts, 28828 and 901, that multiplied together give a triangular number (25974028 = T₇₂₀₇).

The spelling of 28828901 in words is "twenty-eight million, eight hundred twenty-eight thousand, nine hundred one".