648868082 has 8 divisors (see below), whose sum is σ = 991666476. Its totient is φ = 318312592.

The previous prime is 648868063. The next prime is 648868141. The reversal of 648868082 is 280868846.

It can be written as a sum of positive squares in 2 ways, for example, as 623051521 + 25816561 = 24961^2 + 5081^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 648868082.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3060593 + ... + 3060804.

Almost surely, 2^648868082 is an apocalyptic number.

648868082 is a deficient number, since it is larger than the sum of its proper divisors (342798394).

648868082 is a wasteful number, since it uses less digits than its factorization.

648868082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6121452.

The product of its (nonzero) digits is 1179648, while the sum is 50.

The square root of 648868082 is about 25472.8891569056. The cubic root of 648868082 is about 865.7359867023.

The spelling of 648868082 in words is "six hundred forty-eight million, eight hundred sixty-eight thousand, eighty-two".