389890101 has 24 divisors (see below), whose sum is σ = 539304480. Its totient is φ = 250461120.

The previous prime is 389890099. The next prime is 389890117. The reversal of 389890101 is 101098983.

It is a happy number.

It is not a de Polignac number, because 389890101 - 2¹ = 389890099 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 389890101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389890001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 591310 + ... + 591968.

It is an arithmetic number, because the mean of its divisors is an integer number (22471020).

Almost surely, 2^389890101 is an apocalyptic number.

It is an amenable number.

389890101 is a deficient number, since it is larger than the sum of its proper divisors (149414379).

389890101 is an equidigital number, since it uses as much as digits as its factorization.

389890101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837 (or 776 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 389890101 is about 19745.6349859912. The cubic root of 389890101 is about 730.5457237905.

The spelling of 389890101 in words is "three hundred eighty-nine million, eight hundred ninety thousand, one hundred one".