28030801 has 2 divisors, whose sum is σ = 28030802. Its totient is φ = 28030800.

The previous prime is 28030763. The next prime is 28030811. The reversal of 28030801 is 10803082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25765776 + 2265025 = 5076^2 + 1505^2 .

It is a cyclic number.

It is not a de Polignac number, because 28030801 - 2¹¹ = 28028753 is a prime.

It is not a weakly prime, because it can be changed into another prime (28030811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14015400 + 14015401.

It is an arithmetic number, because the mean of its divisors is an integer number (14015401).

Almost surely, 2^28030801 is an apocalyptic number.

It is an amenable number.

28030801 is a deficient number, since it is larger than the sum of its proper divisors (1).

28030801 is an equidigital number, since it uses as much as digits as its factorization.

28030801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 28030801 is about 5294.4122431107. The cubic root of 28030801 is about 303.7702015952.

Adding to 28030801 its reverse (10803082), we get a palindrome (38833883).

The spelling of 28030801 in words is "twenty-eight million, thirty thousand, eight hundred one".