123397693 has 8 divisors (see below), whose sum is σ = 125608280. Its totient is φ = 121193280.

The previous prime is 123397663. The next prime is 123397709. The reversal of 123397693 is 396793321.

It can be written as a sum of positive squares in 4 ways, for example, as 44063044 + 79334649 = 6638^2 + 8907^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123397693 - 2⁵ = 123397661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123397663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59803 + ... + 61831.

It is an arithmetic number, because the mean of its divisors is an integer number (15701035).

Almost surely, 2^123397693 is an apocalyptic number.

It is an amenable number.

123397693 is a deficient number, since it is larger than the sum of its proper divisors (2210587).

123397693 is an equidigital number, since it uses as much as digits as its factorization.

123397693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3087.

The product of its digits is 183708, while the sum is 43.

The square root of 123397693 is about 11108.4514222280. The cubic root of 123397693 is about 497.8543966089.

The spelling of 123397693 in words is "one hundred twenty-three million, three hundred ninety-seven thousand, six hundred ninety-three".