28499747 has 2 divisors, whose sum is σ = 28499748. Its totient is φ = 28499746.

The previous prime is 28499741. The next prime is 28499759. The reversal of 28499747 is 74799482.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28499747 - 2¹² = 28495651 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 28499695 and 28499704.

It is not a weakly prime, because it can be changed into another prime (28499741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14249873 + 14249874.

It is an arithmetic number, because the mean of its divisors is an integer number (14249874).

Almost surely, 2^28499747 is an apocalyptic number.

28499747 is a deficient number, since it is larger than the sum of its proper divisors (1).

28499747 is an equidigital number, since it uses as much as digits as its factorization.

28499747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1016064, while the sum is 50.

The square root of 28499747 is about 5338.5154303420. The cubic root of 28499747 is about 305.4548333486.

The spelling of 28499747 in words is "twenty-eight million, four hundred ninety-nine thousand, seven hundred forty-seven".