648283867 has 48 divisors (see below), whose sum is σ = 854485632. Its totient is φ = 486017280.

The previous prime is 648283861. The next prime is 648283879. The reversal of 648283867 is 768382846.

It is not a de Polignac number, because 648283867 - 2³ = 648283859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (648283861) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1923523 + ... + 1923859.

It is an arithmetic number, because the mean of its divisors is an integer number (17801784).

Almost surely, 2^648283867 is an apocalyptic number.

648283867 is a deficient number, since it is larger than the sum of its proper divisors (206201765).

648283867 is a wasteful number, since it uses less digits than its factorization.

648283867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488 (or 481 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 52.

The square root of 648283867 is about 25461.4191866832. The cubic root of 648283867 is about 865.4760839409.

The spelling of 648283867 in words is "six hundred forty-eight million, two hundred eighty-three thousand, eight hundred sixty-seven".