79357823 has 2 divisors, whose sum is σ = 79357824. Its totient is φ = 79357822.

The previous prime is 79357793. The next prime is 79357867. The reversal of 79357823 is 32875397.

It is an a-pointer prime, because the next prime (79357867) can be obtained adding 79357823 to its sum of digits (44).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79357823 - 2²⁰ = 78309247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79357423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39678911 + 39678912.

It is an arithmetic number, because the mean of its divisors is an integer number (39678912).

Almost surely, 2^79357823 is an apocalyptic number.

79357823 is a deficient number, since it is larger than the sum of its proper divisors (1).

79357823 is an equidigital number, since it uses as much as digits as its factorization.

79357823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317520, while the sum is 44.

The square root of 79357823 is about 8908.3007919580. The cubic root of 79357823 is about 429.7308988707.

The spelling of 79357823 in words is "seventy-nine million, three hundred fifty-seven thousand, eight hundred twenty-three".