648858902 has 8 divisors (see below), whose sum is σ = 975716712. Its totient is φ = 323620000.

The previous prime is 648858901. The next prime is 648858937. The reversal of 648858902 is 209858846.

648858902 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (648858901) 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, 403724 + ... + 405327.

It is an arithmetic number, because the mean of its divisors is an integer number (121964589).

Almost surely, 2^648858902 is an apocalyptic number.

648858902 is a deficient number, since it is larger than the sum of its proper divisors (326857810).

648858902 is a wasteful number, since it uses less digits than its factorization.

648858902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809454.

The product of its (nonzero) digits is 1105920, while the sum is 50.

The square root of 648858902 is about 25472.7089646940. The cubic root of 648858902 is about 865.7319039547.

The spelling of 648858902 in words is "six hundred forty-eight million, eight hundred fifty-eight thousand, nine hundred two".