654772 has 12 divisors (see below), whose sum is σ = 1213380. Its totient is φ = 308096.

The previous prime is 654767. The next prime is 654779. The reversal of 654772 is 277456.

It can be written as a sum of positive squares in 2 ways, for example, as 599076 + 55696 = 774^2 + 236^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654779) 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 3 ways as a sum of consecutive naturals, for example, 4747 + ... + 4882.

It is an arithmetic number, because the mean of its divisors is an integer number (101115).

2⁶⁵⁴⁷⁷² is an apocalyptic number.

It is an amenable number.

654772 is a deficient number, since it is larger than the sum of its proper divisors (558608).

654772 is a wasteful number, since it uses less digits than its factorization.

654772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9650 (or 9648 counting only the distinct ones).

The product of its digits is 11760, while the sum is 31.

The square root of 654772 is about 809.1798316814. The cubic root of 654772 is about 86.8353781331.

The spelling of 654772 in words is "six hundred fifty-four thousand, seven hundred seventy-two".