8457500 has 60 divisors (see below), whose sum is σ = 19681200. Its totient is φ = 3168000.

The previous prime is 8457499. The next prime is 8457511. The reversal of 8457500 is 57548.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 42401 + ... + 42599.

It is an arithmetic number, because the mean of its divisors is an integer number (328020).

Almost surely, 2^8457500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8457500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9840600).

8457500 is an abundant number, since it is smaller than the sum of its proper divisors (11223700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8457500 is a wasteful number, since it uses less digits than its factorization.

8457500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 8457500 is about 2908.1781238432. The cubic root of 8457500 is about 203.7420486942.

The spelling of 8457500 in words is "eight million, four hundred fifty-seven thousand, five hundred".