8457249 has 8 divisors (see below), whose sum is σ = 11306880. Its totient is φ = 5622896.

The previous prime is 8457247. The next prime is 8457271. The reversal of 8457249 is 9427548.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8457249 - 2¹ = 8457247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8457247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2457 + ... + 4790.

It is an arithmetic number, because the mean of its divisors is an integer number (1413360).

Almost surely, 2^8457249 is an apocalyptic number.

It is an amenable number.

8457249 is a deficient number, since it is larger than the sum of its proper divisors (2849631).

8457249 is a wasteful number, since it uses less digits than its factorization.

8457249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7639.

The product of its digits is 80640, while the sum is 39.

The square root of 8457249 is about 2908.1349693575. The cubic root of 8457249 is about 203.7400331356.

Subtracting 8457249 from its reverse (9427548), we obtain a cube (970299 = 99³).

The spelling of 8457249 in words is "eight million, four hundred fifty-seven thousand, two hundred forty-nine".