389377117 has 2 divisors, whose sum is σ = 389377118. Its totient is φ = 389377116.

The previous prime is 389377111. The next prime is 389377139. The reversal of 389377117 is 711773983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 315915076 + 73462041 = 17774^2 + 8571^2 .

It is a cyclic number.

It is not a de Polignac number, because 389377117 - 2¹⁹ = 388852829 is a prime.

It is a super-2 number, since 2×389377117² = 303229078486463378, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389377111) 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, 194688558 + 194688559.

It is an arithmetic number, because the mean of its divisors is an integer number (194688559).

Almost surely, 2^389377117 is an apocalyptic number.

It is an amenable number.

389377117 is a deficient number, since it is larger than the sum of its proper divisors (1).

389377117 is an equidigital number, since it uses as much as digits as its factorization.

389377117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 222264, while the sum is 46.

The square root of 389377117 is about 19732.6409028290. The cubic root of 389377117 is about 730.2251866740.

The spelling of 389377117 in words is "three hundred eighty-nine million, three hundred seventy-seven thousand, one hundred seventeen".