8457489 has 12 divisors (see below), whose sum is σ = 12859600. Its totient is φ = 5341464.

The previous prime is 8457487. The next prime is 8457499. The reversal of 8457489 is 9847548.

It is not a de Polignac number, because 8457489 - 2¹ = 8457487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8457481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24559 + ... + 24900.

Almost surely, 2^8457489 is an apocalyptic number.

It is an amenable number.

8457489 is a deficient number, since it is larger than the sum of its proper divisors (4402111).

8457489 is a wasteful number, since it uses less digits than its factorization.

8457489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49484 (or 49481 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 8457489 is about 2908.1762326242. The cubic root of 8457489 is about 203.7419603638.

The spelling of 8457489 in words is "eight million, four hundred fifty-seven thousand, four hundred eighty-nine".