5621197 has 2 divisors, whose sum is σ = 5621198. Its totient is φ = 5621196.

The previous prime is 5621191. The next prime is 5621221. The reversal of 5621197 is 7911265.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4056196 + 1565001 = 2014^2 + 1251^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5621197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5621191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2810598 + 2810599.

It is an arithmetic number, because the mean of its divisors is an integer number (2810599).

Almost surely, 2^5621197 is an apocalyptic number.

It is an amenable number.

5621197 is a deficient number, since it is larger than the sum of its proper divisors (1).

5621197 is an equidigital number, since it uses as much as digits as its factorization.

5621197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 31.

The square root of 5621197 is about 2370.9063667720. The cubic root of 5621197 is about 177.8045765879.

The spelling of 5621197 in words is "five million, six hundred twenty-one thousand, one hundred ninety-seven".