648941 has 8 divisors (see below), whose sum is σ = 699840. Its totient is φ = 599488.

The previous prime is 648937. The next prime is 648953. The reversal of 648941 is 149846.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 648941 - 2² = 648937 is a prime.

It is a super-2 number, since 2×648941² = 842248842962, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 648898 and 648907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 680 + ... + 1326.

It is an arithmetic number, because the mean of its divisors is an integer number (87480).

2⁶⁴⁸⁹⁴¹ is an apocalyptic number.

It is an amenable number.

648941 is a deficient number, since it is larger than the sum of its proper divisors (50899).

648941 is a wasteful number, since it uses less digits than its factorization.

648941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723.

The product of its digits is 6912, while the sum is 32.

The square root of 648941 is about 805.5687431871. The cubic root of 648941 is about 86.5768415159.

The spelling of 648941 in words is "six hundred forty-eight thousand, nine hundred forty-one".