8249389 has 2 divisors, whose sum is σ = 8249390. Its totient is φ = 8249388.

The previous prime is 8249383. The next prime is 8249411. The reversal of 8249389 is 9839428.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8168164 + 81225 = 2858^2 + 285^2 .

It is a cyclic number.

It is not a de Polignac number, because 8249389 - 2⁵ = 8249357 is a prime.

8249389 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8249383) 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, 4124694 + 4124695.

It is an arithmetic number, because the mean of its divisors is an integer number (4124695).

Almost surely, 2^8249389 is an apocalyptic number.

It is an amenable number.

8249389 is a deficient number, since it is larger than the sum of its proper divisors (1).

8249389 is an equidigital number, since it uses as much as digits as its factorization.

8249389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 43.

The square root of 8249389 is about 2872.1749598519. The cubic root of 8249389 is about 202.0570126299.

The spelling of 8249389 in words is "eight million, two hundred forty-nine thousand, three hundred eighty-nine".