5456921 has 2 divisors, whose sum is σ = 5456922. Its totient is φ = 5456920.

The previous prime is 5456917. The next prime is 5456951. The reversal of 5456921 is 1296545.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5456896 + 25 = 2336^2 + 5^2 .

It is a cyclic number.

It is not a de Polignac number, because 5456921 - 2² = 5456917 is a prime.

It is a Chen prime.

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

It is not a weakly prime, because it can be changed into another prime (5456951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2728460 + 2728461.

It is an arithmetic number, because the mean of its divisors is an integer number (2728461).

Almost surely, 2^5456921 is an apocalyptic number.

It is an amenable number.

5456921 is a deficient number, since it is larger than the sum of its proper divisors (1).

5456921 is an equidigital number, since it uses as much as digits as its factorization.

5456921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 32.

The square root of 5456921 is about 2336.0053510213. The cubic root of 5456921 is about 176.0553480367.

The spelling of 5456921 in words is "five million, four hundred fifty-six thousand, nine hundred twenty-one".