383967823 has 2 divisors, whose sum is σ = 383967824. Its totient is φ = 383967822.

The previous prime is 383967817. The next prime is 383967847. The reversal of 383967823 is 328769383.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 383967823 - 2²⁵ = 350413391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (383967893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191983911 + 191983912.

It is an arithmetic number, because the mean of its divisors is an integer number (191983912).

Almost surely, 2^383967823 is an apocalyptic number.

383967823 is a deficient number, since it is larger than the sum of its proper divisors (1).

383967823 is an equidigital number, since it uses as much as digits as its factorization.

383967823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 49.

The square root of 383967823 is about 19595.0969122380. The cubic root of 383967823 is about 726.8279346598.

The spelling of 383967823 in words is "three hundred eighty-three million, nine hundred sixty-seven thousand, eight hundred twenty-three".