5620861 has 2 divisors, whose sum is σ = 5620862. Its totient is φ = 5620860.

The previous prime is 5620841. The next prime is 5620883. The reversal of 5620861 is 1680265.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3080025 + 2540836 = 1755^2 + 1594^2 .

It is a cyclic number.

It is not a de Polignac number, because 5620861 - 2¹⁹ = 5096573 is a prime.

It is equal to p₃₈₈₅₂₂ and since 5620861 and 388522 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5620801) 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, 2810430 + 2810431.

It is an arithmetic number, because the mean of its divisors is an integer number (2810431).

Almost surely, 2^5620861 is an apocalyptic number.

It is an amenable number.

5620861 is a deficient number, since it is larger than the sum of its proper divisors (1).

5620861 is an equidigital number, since it uses as much as digits as its factorization.

5620861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 5620861 is about 2370.8355067360. The cubic root of 5620861 is about 177.8010338355.

The spelling of 5620861 in words is "five million, six hundred twenty thousand, eight hundred sixty-one".