648405233 has 8 divisors (see below), whose sum is σ = 755016768. Its totient is φ = 545289264.

The previous prime is 648405217. The next prime is 648405239. The reversal of 648405233 is 332504846.

648405233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 648405233 - 2⁴ = 648405217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 648405193 and 648405202.

It is not an unprimeable number, because it can be changed into a prime (648405239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 873491 + ... + 874232.

It is an arithmetic number, because the mean of its divisors is an integer number (94377096).

Almost surely, 2^648405233 is an apocalyptic number.

It is an amenable number.

648405233 is a deficient number, since it is larger than the sum of its proper divisors (106611535).

648405233 is a wasteful number, since it uses less digits than its factorization.

648405233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1747783.

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 648405233 is about 25463.8024065535. The cubic root of 648405233 is about 865.5300895093.

The spelling of 648405233 in words is "six hundred forty-eight million, four hundred five thousand, two hundred thirty-three".