650993 has 8 divisors (see below), whose sum is σ = 751488. Its totient is φ = 552384.

The previous prime is 650987. The next prime is 651017. The reversal of 650993 is 399056.

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

It is not a de Polignac number, because 650993 - 2¹⁰ = 649969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (650933) 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, 380 + ... + 1202.

It is an arithmetic number, because the mean of its divisors is an integer number (93936).

2⁶⁵⁰⁹⁹³ is an apocalyptic number.

It is an amenable number.

650993 is a deficient number, since it is larger than the sum of its proper divisors (100495).

650993 is a wasteful number, since it uses less digits than its factorization.

650993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943.

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 650993 is about 806.8413722659. The cubic root of 650993 is about 86.6679996508.

The spelling of 650993 in words is "six hundred fifty thousand, nine hundred ninety-three".