4717989 has 6 divisors (see below), whose sum is σ = 6814886. Its totient is φ = 3145320.

The previous prime is 4717963. The next prime is 4717997. The reversal of 4717989 is 9897174.

It can be written as a sum of positive squares in only one way, i.e., 4601025 + 116964 = 2145^2 + 342^2 .

It is not a de Polignac number, because 4717989 - 2⁷ = 4717861 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 (4717919) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 262102 + ... + 262119.

Almost surely, 2^4717989 is an apocalyptic number.

It is an amenable number.

4717989 is a deficient number, since it is larger than the sum of its proper divisors (2096897).

4717989 is a wasteful number, since it uses less digits than its factorization.

4717989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524227 (or 524224 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 4717989 is about 2172.0932300433. The cubic root of 4717989 is about 167.7203041629.

The spelling of 4717989 in words is "four million, seven hundred seventeen thousand, nine hundred eighty-nine".