8130989 has 2 divisors, whose sum is σ = 8130990. Its totient is φ = 8130988.

The previous prime is 8130977. The next prime is 8131003. The reversal of 8130989 is 9890318.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6086089 + 2044900 = 2467^2 + 1430^2 .

It is a cyclic number.

It is not a de Polignac number, because 8130989 - 2⁴ = 8130973 is a prime.

It is a super-2 number, since 2×8130989² = 132225964236242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8130949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4065494 + 4065495.

It is an arithmetic number, because the mean of its divisors is an integer number (4065495).

Almost surely, 2^8130989 is an apocalyptic number.

It is an amenable number.

8130989 is a deficient number, since it is larger than the sum of its proper divisors (1).

8130989 is an equidigital number, since it uses as much as digits as its factorization.

8130989 is an evil number, because the sum of its binary digits is even.

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

The square root of 8130989 is about 2851.4889093244. The cubic root of 8130989 is about 201.0856709293.

It can be divided in two parts, 8130 and 989, that added together give a palindrome (9119).

The spelling of 8130989 in words is "eight million, one hundred thirty thousand, nine hundred eighty-nine".