28825801 has 2 divisors, whose sum is σ = 28825802. Its totient is φ = 28825800.

The previous prime is 28825789. The next prime is 28825843. The reversal of 28825801 is 10852882.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20034576 + 8791225 = 4476^2 + 2965^2 .

It is a cyclic number.

It is not a de Polignac number, because 28825801 - 2⁷ = 28825673 is a prime.

It is not a weakly prime, because it can be changed into another prime (28825861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14412900 + 14412901.

It is an arithmetic number, because the mean of its divisors is an integer number (14412901).

Almost surely, 2^28825801 is an apocalyptic number.

It is an amenable number.

28825801 is a deficient number, since it is larger than the sum of its proper divisors (1).

28825801 is an equidigital number, since it uses as much as digits as its factorization.

28825801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10240, while the sum is 34.

The square root of 28825801 is about 5368.9664740991. The cubic root of 28825801 is about 306.6152805888.

The spelling of 28825801 in words is "twenty-eight million, eight hundred twenty-five thousand, eight hundred one".