318838823 has 2 divisors, whose sum is σ = 318838824. Its totient is φ = 318838822.

The previous prime is 318838781. The next prime is 318838873. The reversal of 318838823 is 328838813.

It is a weak prime.

It is an emirp because it is prime and its reverse (328838813) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 318838823 - 2⁶ = 318838759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318838873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159419411 + 159419412.

It is an arithmetic number, because the mean of its divisors is an integer number (159419412).

Almost surely, 2^318838823 is an apocalyptic number.

318838823 is a deficient number, since it is larger than the sum of its proper divisors (1).

318838823 is an equidigital number, since it uses as much as digits as its factorization.

318838823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 221184, while the sum is 44.

The square root of 318838823 is about 17856.0584396445. The cubic root of 318838823 is about 683.1620489724.

The spelling of 318838823 in words is "three hundred eighteen million, eight hundred thirty-eight thousand, eight hundred twenty-three".