389496901 has 2 divisors, whose sum is σ = 389496902. Its totient is φ = 389496900.

The previous prime is 389496893. The next prime is 389496907. The reversal of 389496901 is 109694983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 243328801 + 146168100 = 15599^2 + 12090^2 .

It is a cyclic number.

It is not a de Polignac number, because 389496901 - 2³ = 389496893 is a prime.

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

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389496907) 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 as a sum of consecutive naturals, namely, 194748450 + 194748451.

It is an arithmetic number, because the mean of its divisors is an integer number (194748451).

Almost surely, 2^389496901 is an apocalyptic number.

It is an amenable number.

389496901 is a deficient number, since it is larger than the sum of its proper divisors (1).

389496901 is an equidigital number, since it uses as much as digits as its factorization.

389496901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 419904, while the sum is 49.

The square root of 389496901 is about 19735.6758435074. The cubic root of 389496901 is about 730.3000586701.

The spelling of 389496901 in words is "three hundred eighty-nine million, four hundred ninety-six thousand, nine hundred one".