384977273 has 2 divisors, whose sum is σ = 384977274. Its totient is φ = 384977272.

The previous prime is 384977207. The next prime is 384977303. The reversal of 384977273 is 372779483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 370293049 + 14684224 = 19243^2 + 3832^2 .

It is an emirp because it is prime and its reverse (372779483) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 384977273 - 2⁸ = 384977017 is a prime.

It is not a weakly prime, because it can be changed into another prime (384974273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192488636 + 192488637.

It is an arithmetic number, because the mean of its divisors is an integer number (192488637).

Almost surely, 2^384977273 is an apocalyptic number.

It is an amenable number.

384977273 is a deficient number, since it is larger than the sum of its proper divisors (1).

384977273 is an equidigital number, since it uses as much as digits as its factorization.

384977273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1778112, while the sum is 50.

The square root of 384977273 is about 19620.8377242155. The cubic root of 384977273 is about 727.4643199594.

The spelling of 384977273 in words is "three hundred eighty-four million, nine hundred seventy-seven thousand, two hundred seventy-three".