5408661 has 8 divisors (see below), whose sum is σ = 7228000. Its totient is φ = 3597552.

The previous prime is 5408659. The next prime is 5408671. The reversal of 5408661 is 1668045.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5408661 - 2¹ = 5408659 is a prime.

It is a super-2 number, since 2×5408661² = 58507227625842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5408671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310 + ... + 3303.

It is an arithmetic number, because the mean of its divisors is an integer number (903500).

Almost surely, 2^5408661 is an apocalyptic number.

It is an amenable number.

5408661 is a deficient number, since it is larger than the sum of its proper divisors (1819339).

5408661 is a wasteful number, since it uses less digits than its factorization.

5408661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4115.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 5408661 is about 2325.6528115779. The cubic root of 5408661 is about 175.5348101825.

The spelling of 5408661 in words is "five million, four hundred eight thousand, six hundred sixty-one".