648326273 has 8 divisors (see below), whose sum is σ = 741121920. Its totient is φ = 555575040.

The previous prime is 648326269. The next prime is 648326299. The reversal of 648326273 is 372623846.

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 648326273 - 2² = 648326269 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 648326273.

It is not an unprimeable number, because it can be changed into a prime (648326573) 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, 30668 + ... + 47298.

It is an arithmetic number, because the mean of its divisors is an integer number (92640240).

Almost surely, 2^648326273 is an apocalyptic number.

It is an amenable number.

648326273 is a deficient number, since it is larger than the sum of its proper divisors (92795647).

648326273 is a wasteful number, since it uses less digits than its factorization.

648326273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22207.

The product of its digits is 290304, while the sum is 41.

The square root of 648326273 is about 25462.2519231901. The cubic root of 648326273 is about 865.4949545727.

The spelling of 648326273 in words is "six hundred forty-eight million, three hundred twenty-six thousand, two hundred seventy-three".