650404 has 6 divisors (see below), whose sum is σ = 1138214.
Its totient is φ = 325200.
The previous prime is 650401. The next prime is 650413. The reversal of 650404 is 404056.
650404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in only one way, i.e., 640000 + 10404 = 800^2 + 102^2
It is a nialpdrome in base 15.
It is not an unprimeable number, because it can be changed into a prime (650401) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81297 + ... + 81304.
2650404 is an apocalyptic number.
It is an amenable number.
650404 is a deficient number, since it is larger than the sum of its proper divisors (487810).
650404 is a wasteful number, since it uses less digits than its factorization.
650404 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 162605 (or 162603 counting only the distinct ones).
The product of its (nonzero) digits is 480, while the sum is 19.
The square root of 650404 is about 806.4762860742.
The cubic root of 650404 is about 86.6418535145.
The spelling of 650404 in words is "six hundred fifty thousand, four hundred four".