109657393 has 2 divisors, whose sum is σ = 109657394. Its totient is φ = 109657392.

The previous prime is 109657357. The next prime is 109657397. The reversal of 109657393 is 393756901.

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., 69105969 + 40551424 = 8313^2 + 6368^2 .

It is an emirp because it is prime and its reverse (393756901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109657393 - 2⁹ = 109656881 is a prime.

It is equal to p_6284779 and since 109657393 and 6284779 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (109657397) 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, 54828696 + 54828697.

It is an arithmetic number, because the mean of its divisors is an integer number (54828697).

Almost surely, 2^109657393 is an apocalyptic number.

It is an amenable number.

109657393 is a deficient number, since it is larger than the sum of its proper divisors (1).

109657393 is an equidigital number, since it uses as much as digits as its factorization.

109657393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 153090, while the sum is 43.

The square root of 109657393 is about 10471.7425961489. The cubic root of 109657393 is about 478.6440216986.

The spelling of 109657393 in words is "one hundred nine million, six hundred fifty-seven thousand, three hundred ninety-three".