654500 has 96 divisors (see below), whose sum is σ = 1886976. Its totient is φ = 192000.

The previous prime is 654499. The next prime is 654509. The reversal of 654500 is 5456.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38492 + ... + 38508.

It is an arithmetic number, because the mean of its divisors is an integer number (19656).

2⁶⁵⁴⁵⁰⁰ 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 654500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (943488).

654500 is an abundant number, since it is smaller than the sum of its proper divisors (1232476).

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

654500 is a wasteful number, since it uses less digits than its factorization.

654500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54 (or 42 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 654500 is about 809.0117428072. The cubic root of 654500 is about 86.8233523215.

Adding to 654500 its reverse (5456), we get a palindrome (659956).

The spelling of 654500 in words is "six hundred fifty-four thousand, five hundred".