648538335 has 12 divisors (see below), whose sum is σ = 1124133192. Its totient is φ = 345887088.

The previous prime is 648538333. The next prime is 648538349. The reversal of 648538335 is 533835846.

It is not a de Polignac number, because 648538335 - 2¹ = 648538333 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 14411963 = 648538335 / (6 + 4 + 8 + 5 + 3 + 8 + 3 + 3 + 5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648538333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7205937 + ... + 7206026.

It is an arithmetic number, because the mean of its divisors is an integer number (93677766).

Almost surely, 2^648538335 is an apocalyptic number.

648538335 is a deficient number, since it is larger than the sum of its proper divisors (475594857).

648538335 is a wasteful number, since it uses less digits than its factorization.

648538335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14411974 (or 14411971 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 45.

The square root of 648538335 is about 25466.4158255535. The cubic root of 648538335 is about 865.5893096277.

The spelling of 648538335 in words is "six hundred forty-eight million, five hundred thirty-eight thousand, three hundred thirty-five".