8153989 has 2 divisors, whose sum is σ = 8153990. Its totient is φ = 8153988.

The previous prime is 8153969. The next prime is 8153993. The reversal of 8153989 is 9893518.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4284900 + 3869089 = 2070^2 + 1967^2 .

It is a cyclic number.

It is not a de Polignac number, because 8153989 - 2⁷ = 8153861 is a prime.

It is a super-2 number, since 2×8153989² = 132975073224242, which contains 22 as substring.

8153989 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8153939) 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, 4076994 + 4076995.

It is an arithmetic number, because the mean of its divisors is an integer number (4076995).

Almost surely, 2^8153989 is an apocalyptic number.

It is an amenable number.

8153989 is a deficient number, since it is larger than the sum of its proper divisors (1).

8153989 is an equidigital number, since it uses as much as digits as its factorization.

8153989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 43.

The square root of 8153989 is about 2855.5190421358. The cubic root of 8153989 is about 201.2750950536.

The spelling of 8153989 in words is "eight million, one hundred fifty-three thousand, nine hundred eighty-nine".