5630909 has 4 divisors (see below), whose sum is σ = 5643900. Its totient is φ = 5617920.

The previous prime is 5630887. The next prime is 5630917. The reversal of 5630909 is 9090365.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4214809 + 1416100 = 2053^2 + 1190^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5630909 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

5630909 is a modest number, since divided by 909 gives 563 as remainder.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5630309) 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, 5822 + ... + 6719.

It is an arithmetic number, because the mean of its divisors is an integer number (1410975).

Almost surely, 2^5630909 is an apocalyptic number.

It is an amenable number.

5630909 is a deficient number, since it is larger than the sum of its proper divisors (12991).

5630909 is a wasteful number, since it uses less digits than its factorization.

5630909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12990.

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 5630909 is about 2372.9536447221. The cubic root of 5630909 is about 177.9069180459.

The spelling of 5630909 in words is "five million, six hundred thirty thousand, nine hundred nine".