8625289 has 2 divisors, whose sum is σ = 8625290. Its totient is φ = 8625288.

The previous prime is 8625263. The next prime is 8625301. The reversal of 8625289 is 9825268.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8311689 + 313600 = 2883^2 + 560^2 .

It is a cyclic number.

It is not a de Polignac number, because 8625289 - 2¹³ = 8617097 is a prime.

It is a super-2 number, since 2×8625289² = 148791220667042, which contains 22 as substring.

It is a Chen prime.

8625289 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (8625229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4312644 + 4312645.

It is an arithmetic number, because the mean of its divisors is an integer number (4312645).

Almost surely, 2^8625289 is an apocalyptic number.

It is an amenable number.

8625289 is a deficient number, since it is larger than the sum of its proper divisors (1).

8625289 is an equidigital number, since it uses as much as digits as its factorization.

8625289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 40.

The square root of 8625289 is about 2936.8842333330. The cubic root of 8625289 is about 205.0805869959.

The spelling of 8625289 in words is "eight million, six hundred twenty-five thousand, two hundred eighty-nine".