648932 has 12 divisors (see below), whose sum is σ = 1157436. Its totient is φ = 318240.

The previous prime is 648931. The next prime is 648937. The reversal of 648932 is 239846.

It can be written as a sum of positive squares in 2 ways, for example, as 556516 + 92416 = 746^2 + 304^2 .

It is a super-2 number, since 2×648932² = 842225481248, which contains 22 as substring.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (648931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1319 + ... + 1742.

It is an arithmetic number, because the mean of its divisors is an integer number (96453).

2⁶⁴⁸⁹³² is an apocalyptic number.

It is an amenable number.

648932 is a deficient number, since it is larger than the sum of its proper divisors (508504).

648932 is a wasteful number, since it uses less digits than its factorization.

648932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3118 (or 3116 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 648932 is about 805.5631570523. The cubic root of 648932 is about 86.5764412766.

The spelling of 648932 in words is "six hundred forty-eight thousand, nine hundred thirty-two".