654039 has 6 divisors (see below), whose sum is σ = 944736. Its totient is φ = 436020.

The previous prime is 654029. The next prime is 654047. The reversal of 654039 is 930456.

It is a happy number.

654039 is a `hidden beast` number, since 654 + 0 + 3 + 9 = 666.

It is not a de Polignac number, because 654039 - 2⁴ = 654023 is a prime.

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 654039.

It is not an unprimeable number, because it can be changed into a prime (654019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36327 + ... + 36344.

It is an arithmetic number, because the mean of its divisors is an integer number (157456).

2⁶⁵⁴⁰³⁹ is an apocalyptic number.

654039 is a deficient number, since it is larger than the sum of its proper divisors (290697).

654039 is a wasteful number, since it uses less digits than its factorization.

654039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72677 (or 72674 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 654039 is about 808.7267771009. The cubic root of 654039 is about 86.8029627281.

It can be divided in two parts, 6 and 54039, that added together give a palindrome (54045).

The spelling of 654039 in words is "six hundred fifty-four thousand, thirty-nine".