654849 has 24 divisors (see below), whose sum is σ = 1059240. Its totient is φ = 387072.

The previous prime is 654839. The next prime is 654853. The reversal of 654849 is 948456.

654849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3600 + 651249 = 60^2 + 807^2 .

It is not a de Polignac number, because 654849 - 2⁵ = 654817 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (654839) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3297 + ... + 3489.

It is an arithmetic number, because the mean of its divisors is an integer number (44135).

2⁶⁵⁴⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

654849 is a deficient number, since it is larger than the sum of its proper divisors (404391).

654849 is a wasteful number, since it uses less digits than its factorization.

654849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 238 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 654849 is about 809.2274093232. The cubic root of 654849 is about 86.8387818940.

The spelling of 654849 in words is "six hundred fifty-four thousand, eight hundred forty-nine".