28326377 has 2 divisors, whose sum is σ = 28326378. Its totient is φ = 28326376.

The previous prime is 28326371. The next prime is 28326391. The reversal of 28326377 is 77362382.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20647936 + 7678441 = 4544^2 + 2771^2 .

It is a cyclic number.

It is not a de Polignac number, because 28326377 - 2²⁰ = 27277801 is a prime.

It is a super-2 number, since 2×28326377² = 1604767267892258, which contains 22 as substring.

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 28326377.

It is not a weakly prime, because it can be changed into another prime (28326371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14163188 + 14163189.

It is an arithmetic number, because the mean of its divisors is an integer number (14163189).

Almost surely, 2^28326377 is an apocalyptic number.

It is an amenable number.

28326377 is a deficient number, since it is larger than the sum of its proper divisors (1).

28326377 is an equidigital number, since it uses as much as digits as its factorization.

28326377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 38.

The square root of 28326377 is about 5322.2530003749. The cubic root of 28326377 is about 304.8341909838.

The spelling of 28326377 in words is "twenty-eight million, three hundred twenty-six thousand, three hundred seventy-seven".