28850749 has 2 divisors, whose sum is σ = 28850750. Its totient is φ = 28850748.

The previous prime is 28850729. The next prime is 28850771. The reversal of 28850749 is 94705882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28676025 + 174724 = 5355^2 + 418^2 .

It is a cyclic number.

It is not a de Polignac number, because 28850749 - 2¹⁵ = 28817981 is a prime.

It is a super-2 number, since 2×28850749² = 1664731435722002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28850729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14425374 + 14425375.

It is an arithmetic number, because the mean of its divisors is an integer number (14425375).

Almost surely, 2^28850749 is an apocalyptic number.

It is an amenable number.

28850749 is a deficient number, since it is larger than the sum of its proper divisors (1).

28850749 is an equidigital number, since it uses as much as digits as its factorization.

28850749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 28850749 is about 5371.2893238030. The cubic root of 28850749 is about 306.7037109997.

The spelling of 28850749 in words is "twenty-eight million, eight hundred fifty thousand, seven hundred forty-nine".