654388 has 12 divisors (see below), whose sum is σ = 1308832. Its totient is φ = 280440.

The previous prime is 654371. The next prime is 654397. The reversal of 654388 is 883456.

654388 is an admirable number.

It is a d-powerful number, because it can be written as 6⁴ + 5⁸ + 3⁵ + 4² + 8² + 8⁶ .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 11658 + ... + 11713.

2⁶⁵⁴³⁸⁸ is an apocalyptic number.

It is an amenable number.

654388 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

654388 is a wasteful number, since it uses less digits than its factorization.

654388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23382 (or 23380 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 654388 is about 808.9425195896. The cubic root of 654388 is about 86.8183995482.

The spelling of 654388 in words is "six hundred fifty-four thousand, three hundred eighty-eight".