28677349 has 2 divisors, whose sum is σ = 28677350. Its totient is φ = 28677348.

The previous prime is 28677307. The next prime is 28677353. The reversal of 28677349 is 94377682.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21224449 + 7452900 = 4607^2 + 2730^2 .

It is a cyclic number.

It is not a de Polignac number, because 28677349 - 2¹⁹ = 28153061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28677299 and 28677308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28677049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14338674 + 14338675.

It is an arithmetic number, because the mean of its divisors is an integer number (14338675).

Almost surely, 2^28677349 is an apocalyptic number.

It is an amenable number.

28677349 is a deficient number, since it is larger than the sum of its proper divisors (1).

28677349 is an equidigital number, since it uses as much as digits as its factorization.

28677349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 46.

The square root of 28677349 is about 5355.1236213555. The cubic root of 28677349 is about 306.0880212984.

The spelling of 28677349 in words is "twenty-eight million, six hundred seventy-seven thousand, three hundred forty-nine".