654612 has 24 divisors (see below), whose sum is σ = 1745856. Its totient is φ = 187008.

The previous prime is 654611. The next prime is 654613. The reversal of 654612 is 216456.

It is an interprime number because it is at equal distance from previous prime (654611) and next prime (654613).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 654612.

It is not an unprimeable number, because it can be changed into a prime (654611) 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 7 ways as a sum of consecutive naturals, for example, 3813 + ... + 3980.

It is an arithmetic number, because the mean of its divisors is an integer number (72744).

2⁶⁵⁴⁶¹² is an apocalyptic number.

It is an amenable number.

654612 is an abundant number, since it is smaller than the sum of its proper divisors (1091244).

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

654612 is a wasteful number, since it uses less digits than its factorization.

654612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7807 (or 7805 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 654612 is about 809.0809601023. The cubic root of 654612 is about 86.8283045297.

The spelling of 654612 in words is "six hundred fifty-four thousand, six hundred twelve".