389057017 has 4 divisors (see below), whose sum is σ = 390027636. Its totient is φ = 388086400.

The previous prime is 389056981. The next prime is 389057057. The reversal of 389057017 is 710750983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 710750983 = 2081 ⋅341543.

It can be written as a sum of positive squares in 2 ways, for example, as 273042576 + 116014441 = 16524^2 + 10771^2 .

It is a cyclic number.

It is not a de Polignac number, because 389057017 - 2²⁷ = 254839289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389057057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484708 + ... + 485509.

It is an arithmetic number, because the mean of its divisors is an integer number (97506909).

Almost surely, 2^389057017 is an apocalyptic number.

It is an amenable number.

389057017 is a deficient number, since it is larger than the sum of its proper divisors (970619).

389057017 is an equidigital number, since it uses as much as digits as its factorization.

389057017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970618.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 389057017 is about 19724.5283086821. The cubic root of 389057017 is about 730.0250301044.

The spelling of 389057017 in words is "three hundred eighty-nine million, fifty-seven thousand, seventeen".