5616921 has 8 divisors (see below), whose sum is σ = 7730944. Its totient is φ = 3623760.

The previous prime is 5616917. The next prime is 5616937. The reversal of 5616921 is 1296165.

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

It is not a de Polignac number, because 5616921 - 2² = 5616917 is a prime.

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

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5616911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30106 + ... + 30291.

It is an arithmetic number, because the mean of its divisors is an integer number (966368).

Almost surely, 2^5616921 is an apocalyptic number.

It is an amenable number.

5616921 is a deficient number, since it is larger than the sum of its proper divisors (2114023).

5616921 is a wasteful number, since it uses less digits than its factorization.

5616921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60431.

The product of its digits is 3240, while the sum is 30.

The square root of 5616921 is about 2370.0044303756. The cubic root of 5616921 is about 177.7594803072.

The spelling of 5616921 in words is "five million, six hundred sixteen thousand, nine hundred twenty-one".