648872 has 16 divisors (see below), whose sum is σ = 1390560. Its totient is φ = 278064.

The previous prime is 648871. The next prime is 648887. The reversal of 648872 is 278846.

648872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (648871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5738 + ... + 5849.

It is an arithmetic number, because the mean of its divisors is an integer number (86910).

2⁶⁴⁸⁸⁷² is an apocalyptic number.

It is an amenable number.

648872 is an abundant number, since it is smaller than the sum of its proper divisors (741688).

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

648872 is a wasteful number, since it uses less digits than its factorization.

648872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11600 (or 11596 counting only the distinct ones).

The product of its digits is 21504, while the sum is 35.

The square root of 648872 is about 805.5259151635. The cubic root of 648872 is about 86.5737729197.

The spelling of 648872 in words is "six hundred forty-eight thousand, eight hundred seventy-two".