384870077 has 2 divisors, whose sum is σ = 384870078. Its totient is φ = 384870076.

The previous prime is 384869959. The next prime is 384870091. The reversal of 384870077 is 770078483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 314494756 + 70375321 = 17734^2 + 8389^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-384870077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (384870377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192435038 + 192435039.

It is an arithmetic number, because the mean of its divisors is an integer number (192435039).

Almost surely, 2^384870077 is an apocalyptic number.

It is an amenable number.

384870077 is a deficient number, since it is larger than the sum of its proper divisors (1).

384870077 is an equidigital number, since it uses as much as digits as its factorization.

384870077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 263424, while the sum is 44.

The square root of 384870077 is about 19618.1058463859. The cubic root of 384870077 is about 727.3967934587.

The spelling of 384870077 in words is "three hundred eighty-four million, eight hundred seventy thousand, seventy-seven".