13750769 has 2 divisors, whose sum is σ = 13750770. Its totient is φ = 13750768.

The previous prime is 13750747. The next prime is 13750787. The reversal of 13750769 is 96705731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12567025 + 1183744 = 3545^2 + 1088^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13750769 is a prime.

It is a super-2 number, since 2×13750769² = 378167296182722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13750729) 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, 6875384 + 6875385.

It is an arithmetic number, because the mean of its divisors is an integer number (6875385).

Almost surely, 2^13750769 is an apocalyptic number.

It is an amenable number.

13750769 is a deficient number, since it is larger than the sum of its proper divisors (1).

13750769 is an equidigital number, since it uses as much as digits as its factorization.

13750769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39690, while the sum is 38.

The square root of 13750769 is about 3708.2029340369. The cubic root of 13750769 is about 239.5754589540.

The spelling of 13750769 in words is "thirteen million, seven hundred fifty thousand, seven hundred sixty-nine".