650730 has 32 divisors (see below), whose sum is σ = 1584000. Its totient is φ = 171072.

The previous prime is 650701. The next prime is 650759. The reversal of 650730 is 37056.

It is an interprime number because it is at equal distance from previous prime (650701) and next prime (650759).

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 650697 and 650706.

It is an unprimeable number.

650730 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 15 ways as a sum of consecutive naturals, for example, 3171 + ... + 3369.

It is an arithmetic number, because the mean of its divisors is an integer number (49500).

2⁶⁵⁰⁷³⁰ is an apocalyptic number.

650730 is an abundant number, since it is smaller than the sum of its proper divisors (933270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

650730 is a wasteful number, since it uses less digits than its factorization.

650730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 650730 is about 806.6783745707. The cubic root of 650730 is about 86.6563268401.

Adding to 650730 its reverse (37056), we get a palindrome (687786).

The spelling of 650730 in words is "six hundred fifty thousand, seven hundred thirty".