823387055 has 8 divisors (see below), whose sum is σ = 988628112. Its totient is φ = 658333888.

The previous prime is 823387039. The next prime is 823387073. The reversal of 823387055 is 550783328.

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 823387055 - 2⁴ = 823387039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 37142 + ... + 55011.

It is an arithmetic number, because the mean of its divisors is an integer number (123578514).

Almost surely, 2^823387055 is an apocalyptic number.

823387055 is a deficient number, since it is larger than the sum of its proper divisors (165241057).

823387055 is a wasteful number, since it uses less digits than its factorization.

823387055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93945.

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

The square root of 823387055 is about 28694.7217271748. The cubic root of 823387055 is about 937.2771115760.

The spelling of 823387055 in words is "eight hundred twenty-three million, three hundred eighty-seven thousand, fifty-five".