9139769 has 2 divisors, whose sum is σ = 9139770. Its totient is φ = 9139768.

The previous prime is 9139751. The next prime is 9139771. The reversal of 9139769 is 9679319.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8970025 + 169744 = 2995^2 + 412^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9139769 is a prime.

It is a super-2 number, since 2×9139769² = 167070754746722, which contains 22 as substring.

Together with 9139771, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9139709) 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, 4569884 + 4569885.

It is an arithmetic number, because the mean of its divisors is an integer number (4569885).

Almost surely, 2^9139769 is an apocalyptic number.

It is an amenable number.

9139769 is a deficient number, since it is larger than the sum of its proper divisors (1).

9139769 is an equidigital number, since it uses as much as digits as its factorization.

9139769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 91854, while the sum is 44.

The square root of 9139769 is about 3023.2050873204. The cubic root of 9139769 is about 209.0796381563.

The spelling of 9139769 in words is "nine million, one hundred thirty-nine thousand, seven hundred sixty-nine".