4407689 has 12 divisors (see below), whose sum is σ = 5208912. Its totient is φ = 3697200.

The previous prime is 4407671. The next prime is 4407691. The reversal of 4407689 is 9867044.

4407689 = 628² + 629² + ... + 638².

It is a happy number.

It is not a de Polignac number, because 4407689 - 2¹⁶ = 4342153 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (4407089) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 674 + ... + 3044.

It is an arithmetic number, because the mean of its divisors is an integer number (434076).

Almost surely, 2^4407689 is an apocalyptic number.

It is an amenable number.

4407689 is a deficient number, since it is larger than the sum of its proper divisors (801223).

4407689 is a wasteful number, since it uses less digits than its factorization.

4407689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2408 (or 2395 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 4407689 is about 2099.4496897997. The cubic root of 4407689 is about 163.9596495019.

The spelling of 4407689 in words is "four million, four hundred seven thousand, six hundred eighty-nine".