648548 has 12 divisors (see below), whose sum is σ = 1140972. Its totient is φ = 322560.

The previous prime is 648509. The next prime is 648563. The reversal of 648548 is 845846.

648548 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 574564 + 73984 = 758^2 + 272^2 .

It is a super-2 number, since 2×648548² = 841229016608, which contains 22 as substring.

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, 836 + ... + 1412.

It is an arithmetic number, because the mean of its divisors is an integer number (95081).

2⁶⁴⁸⁵⁴⁸ is an apocalyptic number.

It is an amenable number.

648548 is a deficient number, since it is larger than the sum of its proper divisors (492424).

648548 is a wasteful number, since it uses less digits than its factorization.

648548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862 (or 860 counting only the distinct ones).

The product of its digits is 30720, while the sum is 35.

The square root of 648548 is about 805.3247792040. The cubic root of 648548 is about 86.5593609491.

The spelling of 648548 in words is "six hundred forty-eight thousand, five hundred forty-eight".