648913058 has 8 divisors (see below), whose sum is σ = 973890540. Its totient is φ = 324282880.

The previous prime is 648912991. The next prime is 648913117. The reversal of 648913058 is 850319846.

It can be written as a sum of positive squares in 2 ways, for example, as 610435849 + 38477209 = 24707^2 + 6203^2 .

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

It is a super-3 number, since 3×648913058³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82103 + ... + 89658.

Almost surely, 2^648913058 is an apocalyptic number.

648913058 is a deficient number, since it is larger than the sum of its proper divisors (324977482).

648913058 is a wasteful number, since it uses less digits than its factorization.

648913058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173652.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 648913058 is about 25473.7719625500. The cubic root of 648913058 is about 865.7559889407.

The spelling of 648913058 in words is "six hundred forty-eight million, nine hundred thirteen thousand, fifty-eight".