10020749 has 2 divisors, whose sum is σ = 10020750. Its totient is φ = 10020748.

The previous prime is 10020743. The next prime is 10020761. The reversal of 10020749 is 94702001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8743849 + 1276900 = 2957^2 + 1130^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10020749 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10020743) 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, 5010374 + 5010375.

It is an arithmetic number, because the mean of its divisors is an integer number (5010375).

Almost surely, 2^10020749 is an apocalyptic number.

It is an amenable number.

10020749 is a deficient number, since it is larger than the sum of its proper divisors (1).

10020749 is an equidigital number, since it uses as much as digits as its factorization.

10020749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 10020749 is about 3165.5566651065. The cubic root of 10020749 is about 215.5923739476.

The spelling of 10020749 in words is "ten million, twenty thousand, seven hundred forty-nine".