28080361 has 2 divisors, whose sum is σ = 28080362. Its totient is φ = 28080360.

The previous prime is 28080359. The next prime is 28080397. The reversal of 28080361 is 16308082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25190361 + 2890000 = 5019^2 + 1700^2 .

It is a cyclic number.

It is not a de Polignac number, because 28080361 - 2¹ = 28080359 is a prime.

Together with 28080359, it forms a pair of twin primes.

It is equal to p_1746118 and since 28080361 and 1746118 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (28080061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14040180 + 14040181.

It is an arithmetic number, because the mean of its divisors is an integer number (14040181).

Almost surely, 2^28080361 is an apocalyptic number.

It is an amenable number.

28080361 is a deficient number, since it is larger than the sum of its proper divisors (1).

28080361 is an equidigital number, since it uses as much as digits as its factorization.

28080361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 28080361 is about 5299.0905823547. The cubic root of 28080361 is about 303.9491236709.

It can be divided in two parts, 28080 and 361, that added together give a triangular number (28441 = T₂₃₈).

The spelling of 28080361 in words is "twenty-eight million, eighty thousand, three hundred sixty-one".