28827437 has 2 divisors, whose sum is σ = 28827438. Its totient is φ = 28827436.

The previous prime is 28827419. The next prime is 28827457. The reversal of 28827437 is 73472882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14546596 + 14280841 = 3814^2 + 3779^2 .

It is a cyclic number.

It is not a de Polignac number, because 28827437 - 2¹² = 28823341 is a prime.

It is a super-2 number, since 2×28827437² = 1662042247977938, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 28827394 and 28827403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28827457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14413718 + 14413719.

It is an arithmetic number, because the mean of its divisors is an integer number (14413719).

Almost surely, 2^28827437 is an apocalyptic number.

It is an amenable number.

28827437 is a deficient number, since it is larger than the sum of its proper divisors (1).

28827437 is an equidigital number, since it uses as much as digits as its factorization.

28827437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 150528, while the sum is 41.

The square root of 28827437 is about 5369.1188290072. The cubic root of 28827437 is about 306.6210810996.

The spelling of 28827437 in words is "twenty-eight million, eight hundred twenty-seven thousand, four hundred thirty-seven".