654497 has 6 divisors (see below), whose sum is σ = 669942. Its totient is φ = 639392.

The previous prime is 654491. The next prime is 654499. The reversal of 654497 is 794456.

It can be written as a sum of positive squares in 3 ways, for example, as 130321 + 524176 = 361^2 + 724^2 .

It is not a de Polignac number, because 654497 - 2¹⁰ = 653473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (654491) 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 5 ways as a sum of consecutive naturals, for example, 2693 + ... + 2925.

It is an arithmetic number, because the mean of its divisors is an integer number (111657).

2⁶⁵⁴⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

654497 is a deficient number, since it is larger than the sum of its proper divisors (15445).

654497 is an equidigital number, since it uses as much as digits as its factorization.

654497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339 (or 286 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 654497 is about 809.0098886911. The cubic root of 654497 is about 86.8232196652.

It can be divided in two parts, 65449 and 7, that added together give a palindrome (65456).

The spelling of 654497 in words is "six hundred fifty-four thousand, four hundred ninety-seven".