10308989 has 2 divisors, whose sum is σ = 10308990. Its totient is φ = 10308988.

The previous prime is 10308983. The next prime is 10308997. The reversal of 10308989 is 98980301.

10308989 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9406489 + 902500 = 3067^2 + 950^2 .

It is a cyclic number.

It is not a de Polignac number, because 10308989 - 2⁸ = 10308733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10308983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5154494 + 5154495.

It is an arithmetic number, because the mean of its divisors is an integer number (5154495).

Almost surely, 2^10308989 is an apocalyptic number.

It is an amenable number.

10308989 is a deficient number, since it is larger than the sum of its proper divisors (1).

10308989 is an equidigital number, since it uses as much as digits as its factorization.

10308989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 10308989 is about 3210.7614361706. The cubic root of 10308989 is about 217.6399873911.

The spelling of 10308989 in words is "ten million, three hundred eight thousand, nine hundred eighty-nine".