389920801 has 4 divisors (see below), whose sum is σ = 390378772. Its totient is φ = 389462832.

The previous prime is 389920781. The next prime is 389920829. The reversal of 389920801 is 108029983.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11229201 + 378691600 = 3351^2 + 19460^2 .

It is a cyclic number.

It is not a de Polignac number, because 389920801 - 2⁷ = 389920673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389920301) 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, 227706 + ... + 229411.

It is an arithmetic number, because the mean of its divisors is an integer number (97594693).

Almost surely, 2^389920801 is an apocalyptic number.

It is an amenable number.

389920801 is a deficient number, since it is larger than the sum of its proper divisors (457971).

389920801 is an equidigital number, since it uses as much as digits as its factorization.

389920801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457970.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 389920801 is about 19746.4123576917. The cubic root of 389920801 is about 730.5648977107.

The spelling of 389920801 in words is "three hundred eighty-nine million, nine hundred twenty thousand, eight hundred one".