73823 has 2 divisors, whose sum is σ = 73824. Its totient is φ = 73822.

The previous prime is 73819. The next prime is 73847. The reversal of 73823 is 32837.

It is a weak prime.

73823 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 73823 - 2² = 73819 is a prime.

It is a Sophie Germain prime.

It is a plaindrome in base 9.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36911 + 36912.

It is an arithmetic number, because the mean of its divisors is an integer number (36912).

2⁷³⁸²³ is an apocalyptic number.

73823 is a deficient number, since it is larger than the sum of its proper divisors (1).

73823 is an equidigital number, since it uses as much as digits as its factorization.

73823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 23.

The square root of 73823 is about 271.7038829314. The cubic root of 73823 is about 41.9498645914.

The spelling of 73823 in words is "seventy-three thousand, eight hundred twenty-three".