123797 has 4 divisors (see below), whose sum is σ = 126720. Its totient is φ = 120876.

The previous prime is 123791. The next prime is 123803. The reversal of 123797 is 797321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 797321 = 7 ⋅113903.

It is an interprime number because it is at equal distance from previous prime (123791) and next prime (123803).

It is a cyclic number.

It is not a de Polignac number, because 123797 - 2⁶ = 123733 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1397 + ... + 1482.

It is an arithmetic number, because the mean of its divisors is an integer number (31680).

2¹²³⁷⁹⁷ is an apocalyptic number.

It is an amenable number.

123797 is a deficient number, since it is larger than the sum of its proper divisors (2923).

123797 is an equidigital number, since it uses as much as digits as its factorization.

123797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2922.

The product of its digits is 2646, while the sum is 29.

The square root of 123797 is about 351.8479785362. The cubic root of 123797 is about 49.8390826678.

The spelling of 123797 in words is "one hundred twenty-three thousand, seven hundred ninety-seven".