823007 has 4 divisors (see below), whose sum is σ = 827736. Its totient is φ = 818280.

The previous prime is 823003. The next prime is 823013. The reversal of 823007 is 700328.

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

It is a cyclic number.

It is not a de Polignac number, because 823007 - 2² = 823003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 823007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2093 + ... + 2454.

It is an arithmetic number, because the mean of its divisors is an integer number (206934).

2⁸²³⁰⁰⁷ is an apocalyptic number.

823007 is a deficient number, since it is larger than the sum of its proper divisors (4729).

823007 is a wasteful number, since it uses less digits than its factorization.

823007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4728.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 823007 is about 907.1973324476. The cubic root of 823007 is about 93.7132881443.

The spelling of 823007 in words is "eight hundred twenty-three thousand, seven".