28452377 has 2 divisors, whose sum is σ = 28452378. Its totient is φ = 28452376.

The previous prime is 28452353. The next prime is 28452397. The reversal of 28452377 is 77325482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24245776 + 4206601 = 4924^2 + 2051^2 .

It is a cyclic number.

It is not a de Polignac number, because 28452377 - 2¹² = 28448281 is a prime.

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 28452377.

It is not a weakly prime, because it can be changed into another prime (28452397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14226188 + 14226189.

It is an arithmetic number, because the mean of its divisors is an integer number (14226189).

Almost surely, 2^28452377 is an apocalyptic number.

It is an amenable number.

28452377 is a deficient number, since it is larger than the sum of its proper divisors (1).

28452377 is an equidigital number, since it uses as much as digits as its factorization.

28452377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94080, while the sum is 38.

The square root of 28452377 is about 5334.0769585749. The cubic root of 28452377 is about 305.2855053017.

The spelling of 28452377 in words is "twenty-eight million, four hundred fifty-two thousand, three hundred seventy-seven".