648950 has 12 divisors (see below), whose sum is σ = 1207140. Its totient is φ = 259560.

The previous prime is 648937. The next prime is 648953. The reversal of 648950 is 59846.

It is a super-2 number, since 2×648950² = 842272205000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648953) 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 5 ways as a sum of consecutive naturals, for example, 6440 + ... + 6539.

It is an arithmetic number, because the mean of its divisors is an integer number (100595).

2⁶⁴⁸⁹⁵⁰ is an apocalyptic number.

648950 is a deficient number, since it is larger than the sum of its proper divisors (558190).

648950 is a wasteful number, since it uses less digits than its factorization.

648950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12991 (or 12986 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 648950 is about 805.5743292832. The cubic root of 648950 is about 86.5772417516.

The spelling of 648950 in words is "six hundred forty-eight thousand, nine hundred fifty".