648099 has 12 divisors (see below), whose sum is σ = 946296. Its totient is φ = 427392.

The previous prime is 648097. The next prime is 648101. The reversal of 648099 is 990846.

648099 is a `hidden beast` number, since 648 + 0 + 9 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (648097) and next prime (648101).

It is not a de Polignac number, because 648099 - 2¹ = 648097 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 648099.

It is not an unprimeable number, because it can be changed into a prime (648097) 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 11 ways as a sum of consecutive naturals, for example, 627 + ... + 1299.

It is an arithmetic number, because the mean of its divisors is an integer number (78858).

2⁶⁴⁸⁰⁹⁹ is an apocalyptic number.

648099 is a deficient number, since it is larger than the sum of its proper divisors (298197).

648099 is a wasteful number, since it uses less digits than its factorization.

648099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786 (or 783 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 648099 is about 805.0459614208. The cubic root of 648099 is about 86.5393808677.

The spelling of 648099 in words is "six hundred forty-eight thousand, ninety-nine".