389420101 has 6 divisors (see below), whose sum is σ = 452998950. Its totient is φ = 333788616.

The previous prime is 389420081. The next prime is 389420117. The reversal of 389420101 is 101024983.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 233295076 + 156125025 = 15274^2 + 12495^2 .

It is not a de Polignac number, because 389420101 - 2¹³ = 389411909 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 389420101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389420191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3973626 + ... + 3973723.

It is an arithmetic number, because the mean of its divisors is an integer number (75499825).

Almost surely, 2^389420101 is an apocalyptic number.

It is an amenable number.

389420101 is a deficient number, since it is larger than the sum of its proper divisors (63578849).

389420101 is an equidigital number, since it uses as much as digits as its factorization.

389420101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7947363 (or 7947356 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 389420101 is about 19733.7300326117. The cubic root of 389420101 is about 730.2520559507.

The spelling of 389420101 in words is "three hundred eighty-nine million, four hundred twenty thousand, one hundred one".