648713602 has 4 divisors (see below), whose sum is σ = 973070406. Its totient is φ = 324356800.

The previous prime is 648713579. The next prime is 648713621. The reversal of 648713602 is 206317846.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 594823321 + 53890281 = 24389^2 + 7341^2 .

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 as a sum of consecutive naturals, namely, 162178399 + ... + 162178402.

Almost surely, 2^648713602 is an apocalyptic number.

648713602 is a deficient number, since it is larger than the sum of its proper divisors (324356804).

648713602 is a wasteful number, since it uses less digits than its factorization.

648713602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324356803.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 648713602 is about 25469.8567330089. The cubic root of 648713602 is about 865.6672775591.

The spelling of 648713602 in words is "six hundred forty-eight million, seven hundred thirteen thousand, six hundred two".