73855823 has 2 divisors, whose sum is σ = 73855824. Its totient is φ = 73855822.

The previous prime is 73855819. The next prime is 73855853. The reversal of 73855823 is 32855837.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73855823 - 2² = 73855819 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73855813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36927911 + 36927912.

It is an arithmetic number, because the mean of its divisors is an integer number (36927912).

Almost surely, 2^73855823 is an apocalyptic number.

73855823 is a deficient number, since it is larger than the sum of its proper divisors (1).

73855823 is an equidigital number, since it uses as much as digits as its factorization.

73855823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 41.

The square root of 73855823 is about 8593.9410633306. The cubic root of 73855823 is about 419.5608088525.

The spelling of 73855823 in words is "seventy-three million, eight hundred fifty-five thousand, eight hundred twenty-three".