5408649 has 6 divisors (see below), whose sum is σ = 7812506. Its totient is φ = 3605760.

The previous prime is 5408647. The next prime is 5408653. The reversal of 5408649 is 9468045.

5408649 is a `hidden beast` number, since 5 + 4 + 0 + 8 + 649 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4928400 + 480249 = 2220^2 + 693^2 .

It is not a de Polignac number, because 5408649 - 2¹ = 5408647 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5408647) 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, 300472 + ... + 300489.

Almost surely, 2^5408649 is an apocalyptic number.

It is an amenable number.

5408649 is a deficient number, since it is larger than the sum of its proper divisors (2403857).

5408649 is a wasteful number, since it uses less digits than its factorization.

5408649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600967 (or 600964 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 5408649 is about 2325.6502316557. The cubic root of 5408649 is about 175.5346803648.

The spelling of 5408649 in words is "five million, four hundred eight thousand, six hundred forty-nine".