654799 has 2 divisors, whose sum is σ = 654800. Its totient is φ = 654798.

The previous prime is 654781. The next prime is 654803. The reversal of 654799 is 997456.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 654799 - 2⁵ = 654767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327399 + 327400.

It is an arithmetic number, because the mean of its divisors is an integer number (327400).

2⁶⁵⁴⁷⁹⁹ is an apocalyptic number.

654799 is a deficient number, since it is larger than the sum of its proper divisors (1).

654799 is an equidigital number, since it uses as much as digits as its factorization.

654799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 40.

The square root of 654799 is about 809.1965150691. The cubic root of 654799 is about 86.8365716900.

The spelling of 654799 in words is "six hundred fifty-four thousand, seven hundred ninety-nine".