123773 has 4 divisors (see below), whose sum is σ = 133308. Its totient is φ = 114240.

The previous prime is 123757. The next prime is 123787. The reversal of 123773 is 377321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34969 + 88804 = 187^2 + 298^2 .

It is a cyclic number.

It is not a de Polignac number, because 123773 - 2⁴ = 123757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123733) 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, 4748 + ... + 4773.

It is an arithmetic number, because the mean of its divisors is an integer number (33327).

2¹²³⁷⁷³ is an apocalyptic number.

123773 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

123773 is a deficient number, since it is larger than the sum of its proper divisors (9535).

123773 is an equidigital number, since it uses as much as digits as its factorization.

123773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9534.

The product of its digits is 882, while the sum is 23.

The square root of 123773 is about 351.8138712444. The cubic root of 123773 is about 49.8358617624.

The spelling of 123773 in words is "one hundred twenty-three thousand, seven hundred seventy-three", and thus it is an iban number.