383854973 has 2 divisors, whose sum is σ = 383854974. Its totient is φ = 383854972.

The previous prime is 383854921. The next prime is 383855009. The reversal of 383854973 is 379458383.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 281501284 + 102353689 = 16778^2 + 10117^2 .

It is a cyclic number.

It is not a de Polignac number, because 383854973 - 2⁸ = 383854717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (383854873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191927486 + 191927487.

It is an arithmetic number, because the mean of its divisors is an integer number (191927487).

Almost surely, 2^383854973 is an apocalyptic number.

It is an amenable number.

383854973 is a deficient number, since it is larger than the sum of its proper divisors (1).

383854973 is an equidigital number, since it uses as much as digits as its factorization.

383854973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 50.

The square root of 383854973 is about 19592.2171537578. The cubic root of 383854973 is about 726.7567216011.

The spelling of 383854973 in words is "three hundred eighty-three million, eight hundred fifty-four thousand, nine hundred seventy-three".