648363733 has 4 divisors (see below), whose sum is σ = 682488160. Its totient is φ = 614239308.

The previous prime is 648363707. The next prime is 648363763. The reversal of 648363733 is 337363846.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 648363733 - 2¹³ = 648355541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 648363733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648363763) 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 3 ways as a sum of consecutive naturals, for example, 17062185 + ... + 17062222.

It is an arithmetic number, because the mean of its divisors is an integer number (170622040).

Almost surely, 2^648363733 is an apocalyptic number.

It is an amenable number.

648363733 is a deficient number, since it is larger than the sum of its proper divisors (34124427).

648363733 is a wasteful number, since it uses less digits than its factorization.

648363733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34124426.

The product of its digits is 653184, while the sum is 43.

The square root of 648363733 is about 25462.9875112878. The cubic root of 648363733 is about 865.5116235546.

The spelling of 648363733 in words is "six hundred forty-eight million, three hundred sixty-three thousand, seven hundred thirty-three".