648003499 has 16 divisors (see below), whose sum is σ = 762209280. Its totient is φ = 543123360.

The previous prime is 648003469. The next prime is 648003529. The reversal of 648003499 is 994300846.

It is an interprime number because it is at equal distance from previous prime (648003469) and next prime (648003529).

It is not a de Polignac number, because 648003499 - 2⁷ = 648003371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (648003409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143494 + ... + 147940.

It is an arithmetic number, because the mean of its divisors is an integer number (47638080).

Almost surely, 2^648003499 is an apocalyptic number.

648003499 is a deficient number, since it is larger than the sum of its proper divisors (114205781).

648003499 is a wasteful number, since it uses less digits than its factorization.

648003499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5490.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 648003499 is about 25455.9128494737. The cubic root of 648003499 is about 865.3512997221.

The spelling of 648003499 in words is "six hundred forty-eight million, three thousand, four hundred ninety-nine".