388822823 has 2 divisors, whose sum is σ = 388822824. Its totient is φ = 388822822.

The previous prime is 388822769. The next prime is 388822853. The reversal of 388822823 is 328228883.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-388822823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (388822853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194411411 + 194411412.

It is an arithmetic number, because the mean of its divisors is an integer number (194411412).

Almost surely, 2^388822823 is an apocalyptic number.

388822823 is a deficient number, since it is larger than the sum of its proper divisors (1).

388822823 is an equidigital number, since it uses as much as digits as its factorization.

388822823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 294912, while the sum is 44.

The square root of 388822823 is about 19718.5907965047. The cubic root of 388822823 is about 729.8785204750.

The spelling of 388822823 in words is "three hundred eighty-eight million, eight hundred twenty-two thousand, eight hundred twenty-three".