823265879 has 2 divisors, whose sum is σ = 823265880. Its totient is φ = 823265878.

The previous prime is 823265867. The next prime is 823265897. The reversal of 823265879 is 978562328.

Together with next prime (823265897) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 823265879 - 2²⁴ = 806488663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (823265819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411632939 + 411632940.

It is an arithmetic number, because the mean of its divisors is an integer number (411632940).

Almost surely, 2^823265879 is an apocalyptic number.

823265879 is a deficient number, since it is larger than the sum of its proper divisors (1).

823265879 is an equidigital number, since it uses as much as digits as its factorization.

823265879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 50.

The square root of 823265879 is about 28692.6101810205. The cubic root of 823265879 is about 937.2311303400.

The spelling of 823265879 in words is "eight hundred twenty-three million, two hundred sixty-five thousand, eight hundred seventy-nine".