650072 has 16 divisors (see below), whose sum is σ = 1272240. Its totient is φ = 310816.

The previous prime is 650071. The next prime is 650081. The reversal of 650072 is 270056.

It is a nialpdrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 650072.

It is not an unprimeable number, because it can be changed into a prime (650071) 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, 1583 + ... + 1950.

It is an arithmetic number, because the mean of its divisors is an integer number (79515).

2⁶⁵⁰⁰⁷² is an apocalyptic number.

It is an amenable number.

650072 is a deficient number, since it is larger than the sum of its proper divisors (622168).

650072 is a wasteful number, since it uses less digits than its factorization.

650072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3562 (or 3558 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 650072 is about 806.2704260978. The cubic root of 650072 is about 86.6271088373.

The spelling of 650072 in words is "six hundred fifty thousand, seventy-two".