655460 has 24 divisors (see below), whose sum is σ = 1482936. Its totient is φ = 241920.

The previous prime is 655453. The next prime is 655471. The reversal of 655460 is 64556.

It can be written as a sum of positive squares in 4 ways, for example, as 40804 + 614656 = 202^2 + 784^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1001 + ... + 1520.

It is an arithmetic number, because the mean of its divisors is an integer number (61789).

2⁶⁵⁵⁴⁶⁰ is an apocalyptic number.

It is an amenable number.

655460 is an abundant number, since it is smaller than the sum of its proper divisors (827476).

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

655460 is a wasteful number, since it uses less digits than its factorization.

655460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543 (or 2541 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 655460 is about 809.6048418828. The cubic root of 655460 is about 86.8657815038.

The spelling of 655460 in words is "six hundred fifty-five thousand, four hundred sixty".