648923104 has 48 divisors (see below), whose sum is σ = 1342172160. Its totient is φ = 308246400.

The previous prime is 648923071. The next prime is 648923141. The reversal of 648923104 is 401329846.

It is a super-2 number, since 2×648923104² = 842202389809989632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108217 + ... + 114055.

It is an arithmetic number, because the mean of its divisors is an integer number (27961920).

Almost surely, 2^648923104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 648923104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (671086080).

648923104 is an abundant number, since it is smaller than the sum of its proper divisors (693249056).

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

648923104 is a wasteful number, since it uses less digits than its factorization.

648923104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6023 (or 6015 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 648923104 is about 25473.9691449919. The cubic root of 648923104 is about 865.7604565858.

The spelling of 648923104 in words is "six hundred forty-eight million, nine hundred twenty-three thousand, one hundred four".