103895989 has 2 divisors, whose sum is σ = 103895990. Its totient is φ = 103895988.

The previous prime is 103895983. The next prime is 103896007. The reversal of 103895989 is 989598301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103693489 + 202500 = 10183^2 + 450^2 .

It is a cyclic number.

It is not a de Polignac number, because 103895989 - 2¹¹ = 103893941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103895983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51947994 + 51947995.

It is an arithmetic number, because the mean of its divisors is an integer number (51947995).

Almost surely, 2^103895989 is an apocalyptic number.

It is an amenable number.

103895989 is a deficient number, since it is larger than the sum of its proper divisors (1).

103895989 is an equidigital number, since it uses as much as digits as its factorization.

103895989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 699840, while the sum is 52.

The square root of 103895989 is about 10192.9381926901. The cubic root of 103895989 is about 470.1101130264.

The spelling of 103895989 in words is "one hundred three million, eight hundred ninety-five thousand, nine hundred eighty-nine".