648858485 has 16 divisors (see below), whose sum is σ = 862097472. Its totient is φ = 464851200.

The previous prime is 648858479. The next prime is 648858503. The reversal of 648858485 is 584858846.

It is not a de Polignac number, because 648858485 - 2⁸ = 648858229 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 648858485.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 84356 + ... + 91725.

It is an arithmetic number, because the mean of its divisors is an integer number (53881092).

Almost surely, 2^648858485 is an apocalyptic number.

It is an amenable number.

648858485 is a deficient number, since it is larger than the sum of its proper divisors (213238987).

648858485 is a wasteful number, since it uses less digits than its factorization.

648858485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176164.

The product of its digits is 9830400, while the sum is 56.

The square root of 648858485 is about 25472.7007794619. The cubic root of 648858485 is about 865.7317184956.

The spelling of 648858485 in words is "six hundred forty-eight million, eight hundred fifty-eight thousand, four hundred eighty-five".