648803093 has 8 divisors (see below), whose sum is σ = 660023640. Its totient is φ = 637676800.

The previous prime is 648803053. The next prime is 648803107. The reversal of 648803093 is 390308846.

It can be written as a sum of positive squares in 4 ways, for example, as 287879089 + 360924004 = 16967^2 + 18998^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-648803093 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 648803093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648803003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9608 + ... + 37281.

It is an arithmetic number, because the mean of its divisors is an integer number (82502955).

Almost surely, 2^648803093 is an apocalyptic number.

It is an amenable number.

648803093 is a deficient number, since it is larger than the sum of its proper divisors (11220547).

648803093 is a wasteful number, since it uses less digits than its factorization.

648803093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47127.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 648803093 is about 25471.6134746113. The cubic root of 648803093 is about 865.7070824221.

The spelling of 648803093 in words is "six hundred forty-eight million, eight hundred three thousand, ninety-three".