648382373 has 4 divisors (see below), whose sum is σ = 652676448. Its totient is φ = 644088300.

The previous prime is 648382369. The next prime is 648382379. The reversal of 648382373 is 373283846.

648382373 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 648382373 - 2² = 648382369 is a prime.

It is a super-2 number, since 2×648382373² = 840799403234222258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648382379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2146811 + ... + 2147112.

It is an arithmetic number, because the mean of its divisors is an integer number (163169112).

Almost surely, 2^648382373 is an apocalyptic number.

It is an amenable number.

648382373 is a deficient number, since it is larger than the sum of its proper divisors (4294075).

648382373 is a wasteful number, since it uses less digits than its factorization.

648382373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4294074.

The product of its digits is 580608, while the sum is 44.

The square root of 648382373 is about 25463.3535301225. The cubic root of 648382373 is about 865.5199177580.

The spelling of 648382373 in words is "six hundred forty-eight million, three hundred eighty-two thousand, three hundred seventy-three".