654580 has 24 divisors (see below), whose sum is σ = 1435392. Its totient is φ = 250272.

The previous prime is 654571. The next prime is 654587. The reversal of 654580 is 85456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654587) 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 in 7 ways as a sum of consecutive naturals, for example, 252 + ... + 1171.

It is an arithmetic number, because the mean of its divisors is an integer number (59808).

2⁶⁵⁴⁵⁸⁰ is an apocalyptic number.

It is an amenable number.

654580 is an abundant number, since it is smaller than the sum of its proper divisors (780812).

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

654580 is a wasteful number, since it uses less digits than its factorization.

654580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455 (or 1453 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 654580 is about 809.0611843365. The cubic root of 654580 is about 86.8268896707.

The spelling of 654580 in words is "six hundred fifty-four thousand, five hundred eighty".