4650689 has 2 divisors, whose sum is σ = 4650690. Its totient is φ = 4650688.

The previous prime is 4650677. The next prime is 4650691. The reversal of 4650689 is 9860564.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4443664 + 207025 = 2108^2 + 455^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4650689 is a prime.

Together with 4650691, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (4650389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2325344 + 2325345.

It is an arithmetic number, because the mean of its divisors is an integer number (2325345).

Almost surely, 2^4650689 is an apocalyptic number.

It is an amenable number.

4650689 is a deficient number, since it is larger than the sum of its proper divisors (1).

4650689 is an equidigital number, since it uses as much as digits as its factorization.

4650689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 4650689 is about 2156.5456174169. The cubic root of 4650689 is about 166.9189968951.

The spelling of 4650689 in words is "four million, six hundred fifty thousand, six hundred eighty-nine".