650065723 has 4 divisors (see below), whose sum is σ = 662331168. Its totient is φ = 637800280.

The previous prime is 650065687. The next prime is 650065729. The reversal of 650065723 is 327560056.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 650065723 - 2⁹ = 650065211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (650065729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6132643 + ... + 6132748.

It is an arithmetic number, because the mean of its divisors is an integer number (165582792).

Almost surely, 2^650065723 is an apocalyptic number.

650065723 is a deficient number, since it is larger than the sum of its proper divisors (12265445).

650065723 is a wasteful number, since it uses less digits than its factorization.

650065723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12265444.

The product of its (nonzero) digits is 37800, while the sum is 34.

The square root of 650065723 is about 25496.3864694588. The cubic root of 650065723 is about 866.2683001686.

The spelling of 650065723 in words is "six hundred fifty million, sixty-five thousand, seven hundred twenty-three".