10287749 has 2 divisors, whose sum is σ = 10287750. Its totient is φ = 10287748.

The previous prime is 10287733. The next prime is 10287751. The reversal of 10287749 is 94778201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7022500 + 3265249 = 2650^2 + 1807^2 .

It is a cyclic number.

It is not a de Polignac number, because 10287749 - 2⁴ = 10287733 is a prime.

Together with 10287751, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10287709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5143874 + 5143875.

It is an arithmetic number, because the mean of its divisors is an integer number (5143875).

Almost surely, 2^10287749 is an apocalyptic number.

It is an amenable number.

10287749 is a deficient number, since it is larger than the sum of its proper divisors (1).

10287749 is an equidigital number, since it uses as much as digits as its factorization.

10287749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 10287749 is about 3207.4521040851. The cubic root of 10287749 is about 217.4904139872.

The spelling of 10287749 in words is "ten million, two hundred eighty-seven thousand, seven hundred forty-nine".