650221007 has 4 divisors (see below), whose sum is σ = 650593680. Its totient is φ = 649848336.

The previous prime is 650220979. The next prime is 650221031. The reversal of 650221007 is 700122056.

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 650221007 - 2¹⁴ = 650204623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650221067) 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, 183707 + ... + 187212.

It is an arithmetic number, because the mean of its divisors is an integer number (162648420).

Almost surely, 2^650221007 is an apocalyptic number.

650221007 is a deficient number, since it is larger than the sum of its proper divisors (372673).

650221007 is a wasteful number, since it uses less digits than its factorization.

650221007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372672.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 650221007 is about 25499.4315034669. The cubic root of 650221007 is about 866.3372710908.

The spelling of 650221007 in words is "six hundred fifty million, two hundred twenty-one thousand, seven".