654499 has 2 divisors, whose sum is σ = 654500. Its totient is φ = 654498.

The previous prime is 654491. The next prime is 654509. The reversal of 654499 is 994456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 654499 - 2³ = 654491 is a prime.

654499 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (654491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327249 + 327250.

It is an arithmetic number, because the mean of its divisors is an integer number (327250).

2⁶⁵⁴⁴⁹⁹ is an apocalyptic number.

654499 is a deficient number, since it is larger than the sum of its proper divisors (1).

654499 is an equidigital number, since it uses as much as digits as its factorization.

654499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 37.

The square root of 654499 is about 809.0111247690. The cubic root of 654499 is about 86.8233081028.

The spelling of 654499 in words is "six hundred fifty-four thousand, four hundred ninety-nine".