389950061 has 2 divisors, whose sum is σ = 389950062. Its totient is φ = 389950060.

The previous prime is 389950021. The next prime is 389950079. The reversal of 389950061 is 160059983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 385926025 + 4024036 = 19645^2 + 2006^2 .

It is a cyclic number.

It is not a de Polignac number, because 389950061 - 2⁶ = 389949997 is a prime.

It is a super-2 number, since 2×389950061² = 304122100147807442, which contains 22 as substring.

It is equal to p_20828696 and since 389950061 and 20828696 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389950021) 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, 194975030 + 194975031.

It is an arithmetic number, because the mean of its divisors is an integer number (194975031).

Almost surely, 2^389950061 is an apocalyptic number.

It is an amenable number.

389950061 is a deficient number, since it is larger than the sum of its proper divisors (1).

389950061 is an equidigital number, since it uses as much as digits as its factorization.

389950061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 389950061 is about 19747.1532378720. The cubic root of 389950061 is about 730.5831713312.

The spelling of 389950061 in words is "three hundred eighty-nine million, nine hundred fifty thousand, sixty-one".