999258648 has 32 divisors (see below), whose sum is σ = 2502232560. Its totient is φ = 332541440.

The previous prime is 999258607. The next prime is 999258649. The reversal of 999258648 is 846852999.

It is a super-3 number, since 3×999258648³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 999258591 and 999258600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999258649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18933 + ... + 48548.

Almost surely, 2^999258648 is an apocalyptic number.

It is an amenable number.

999258648 is an abundant number, since it is smaller than the sum of its proper divisors (1502973912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

999258648 is a wasteful number, since it uses less digits than its factorization.

999258648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68107 (or 68103 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 60.

The square root of 999258648 is about 31611.0526240427. The cubic root of 999258648 is about 999.7528215745.

The spelling of 999258648 in words is "nine hundred ninety-nine million, two hundred fifty-eight thousand, six hundred forty-eight".